[原]发现一个好东西----Linux平台下常用工具描述：/var/cache/man/whatis ［A开头］
A开头：
411toppm (1) - convert Sony Mavica .411 image to PPM
a2p (1) - Awk to Perl translator
a2ps (1) - format files for printing on a PostScript printer
a2ps (rpm) - 将文本及其它类型的文件转换成 PostScript(TM)。
a64l (3) - convert between long and base-64
a64l (3p) - convert between a 32-bit integer and a radix-64 ASCII string
abbrev [Text::Abbrev] (3pm) - create an abbreviation table from a list
abort (3) - cause abnormal program termination
abort (3p) - generate an abnormal process abort
abs (3) - compute the absolute value of an integer
abs (3p) - return an integer absolute value
ac (1) - print statistics about users' connect time
accept (2) - accept a connection on a socket
accept (3p) - accept a new connection on a socket
accept/reject [accept] (8) - accept/reject jobs sent to a destination
access (2) - check user's permissions for a file
access (3p) - determine accessibility of a file
access.conf [access] (5) - the login access control table file
acct (2) - switch process accounting on or off
acct (5) - execution accounting file
accton (8) - turns process accounting on or off
acecad (4) - Acecad Flair input driver
acl (5) - Access Control Lists
acl_add_perm (3) - add a permission to an ACL permission set
acl_calc_mask (3) - calculate the file group class mask
acl_check (3) - check an ACL for validity
acl_clear_perms (3) - clear all permissions from an ACL permission set
acl_cmp (3) - compare two ACLs
acl_copy_entry (3) - copy an ACL entry
acl_copy_ext (3) - copy an ACL from internal to external representation
acl_copy_int (3) - copy an ACL from external to internal representation
acl_create_entry (3) - create a new ACL entry
acl_delete_def_file (3) - delete a default ACL by filename
acl_delete_entry (3) - delete an ACL entry
acl_delete_perm (3) - delete a permission from an ACL permission set
acl_dup (3) - duplicate an ACL
acl_entries (3) - return the number of entries in an ACL
acl_equiv_mode (3) - check for an equivalent ACL
acl_error (3) - convert an ACL error code to a text message
acl_extended_fd (3) - test for information in the ACL by file descriptor
acl_extended_file (3) - test for information in ACLs by file name
acl_free (3) - release memory allocated to an ACL data object
acl_from_mode (3) - create an ACL from file permission bits
acl_from_text (3) - create an ACL from text
acl_get_entry (3) - get an ACL entry
acl_get_fd (3) - get an ACL by file descriptor
acl_get_file (3) - get an ACL by filename
acl_get_perm (3) - test for a permission in an ACL permission set
acl_get_permset (3) - retrieve the permission set from an ACL entry
acl_get_qualifier (3) - retrieve the qualifier from an ACL entry
acl_get_tag_type (3) - get the tag type of an ACL entry
acl_init (3) - initialize ACL working storage
acl (rpm) - 访问控制列表的工具程序。
acl_set_fd (3) - set an ACL by file descriptor
acl_set_file (3) - set an ACL by filename
acl_set_permset (3) - set the permission set in an ACL entry
acl_set_qualifier (3) - set the qualifier of an ACL entry
acl_set_tag_type (3) - set the tag type of an ACL entry
acl_size (3) - get the size of the external representation of an ACL
acl_to_any_text (3) - convert an ACL to text
acl_to_text (3) - convert an ACL to text
acl_valid (3) - validate an ACL
aconnect (1) - ALSA sequencer connection manager
acos (3) - arc cosine function
acos (3p) - arc cosine functions
acosf [acos] (3) - arc cosine function
acosf [acos] (3p) - arc cosine functions
acosh (3) - inverse hyperbolic cosine function
acosh (3p) - inverse hyperbolic cosine functions
acoshf [acosh] (3) - inverse hyperbolic cosine function
acoshf [acosh] (3p) - inverse hyperbolic cosine functions
acoshl [acosh] (3) - inverse hyperbolic cosine function
acoshl [acosh] (3p) - inverse hyperbolic cosine functions
acosl [acos] (3) - arc cosine function
acosl [acos] (3p) - arc cosine functions
acpid (8) - Advanced Configuration and Power Interface event daemon
acpid (rpm) - ACPI 事件守护程序
acpi_listen (8) - ACPI event listener
addch [curs_addch] (3x) - add a character (with attributes) to a curses window, then advance the cursor
addchnstr [curs_addchstr] (3x) - add a string of characters (and attributes) to a curses window
addchstr [curs_addchstr] (3x) - add a string of characters (and attributes) to a curses window
addftinfo (1) - add information to troff font files for use with groff
add_key (2) - Add a key to the kernel's key management facility
addmntent [getmntent] (3) - get file system descriptor file entry
addnstr [curs_addstr] (3x) - add a string of characters to a curses window and advance cursor
addnwstr [curs_addwstr] (3x) - add a string of wide characters to a curses window and advance cursor
addr2line (1) - convert addresses into file names and line numbers
addresses (1) - Dumps the Palm Address Book entries to STDOUT in a simple format
addseverity (3) - introduce new severity classes
addstr [curs_addstr] (3x) - add a string of characters to a curses window and advance cursor
add_wch [curs_add_wch] (3x) - add a complex character and rendition to a curses window, then advance the cursor
add_wchnstr [curs_add_wchstr] (3x) - add an array of complex characters (and attributes) to a curses window
add_wchstr [curs_add_wchstr] (3x) - add an array of complex characters (and attributes) to a curses window
addwstr [curs_addwstr] (3x) - add a string of wide characters to a curses window and advance cursor
adjtime (3) - correct the time to synchronise the system clock
adjtimex (2) - tune kernel clock
admin (1p) - create and administer SCCS files (DEVELOPMENT)
adsl-connect (8) - Shell script to manage a PPPoE link
adsl-setup (8) - Shell script to configure Roaring Penguin PPPoE client
adsl-start (8) - Shell script to bring up a PPPoE link
adsl-status (8) - Shell script to report on status of PPPoE link
adsl-stop (8) - Shell script to shut down a PPPoE link
AF_LOCAL [unix] (7) - Sockets for local interprocess communication
afs5log (1) - AFS token initializer
afs_syscall [unimplemented] (2) - unimplemented system calls
__after_morecore_hook [malloc_hook] (3) - malloc debugging variables
AF_UNIX [unix] (7) - Sockets for local interprocess communication
agetty (8) - alternative Linux getty
agg (rpm) - Anti-Grain Geometry
aio_cancel (3) - cancel an outstanding asynchronous I/O request
aio_cancel (3p) - cancel an asynchronous I/O request (REALTIME)
aio_error (3) - get error status of asynchronous I/O operation
aio_error (3p) - retrieve errors status for an asynchronous I/O operation (REALTIME)
aio_fsync (3) - asynchronous file synchronization
aio_fsync (3p) - asynchronous file synchronization (REALTIME)
aio.h [aio] (0p) - asynchronous input and output (REALTIME)
aio_read (3) - asynchronous read
aio_read (3p) - asynchronous read from a file (REALTIME)
aio_return (3) - get return status of asynchronous I/O operation
aio_return (3p) - retrieve return status of an asynchronous I/O operation (REALTIME)
aio_suspend (3p) - wait for an asynchronous I/O request (REALTIME)
aio_suspend (3) - wait for asynchronous I/O operation or timeout
aio_write (3) - asynchronous write
aio_write (3p) - asynchronous write to a file (REALTIME)
aiptek (4) - Aiptek USB Digital Tablet Input Driver for Linux
alarm (2) - set an alarm clock for delivery of a signal
alarm (3p) - schedule an alarm signal
alias (1p) - define or display aliases
alias [builtins] (1) - bash built-in commands, see bash(1)
aliases (5) - aliases file for sendmail
alloca (3) - memory allocator
alloc_hugepages (2) - allocate or free huge pages
AllPlanes (3x) - Display macros and functions
alphasort [scandir] (3) - scan a directory for matching entries
alsactl (1) - advanced controls for ALSA soundcard driver
alsa-lib-devel (rpm) - ALSA 库的静态库和头文件。
alsa-lib (rpm) - 高级 Linux 声音体系结构（ALSA）库。
alsamixer (1) - soundcard mixer for ALSA soundcard driver, with ncurses interface
alsa-utils (rpm) - 高级 Linux 声音体系结构（ALSA）工具。
alternatives (8) - maintain symbolic links determining default commands
amidi (1) - read from and write to ALSA RawMIDI ports
amixer (1) - command-line mixer for ALSA soundcard driver
anacron (8) - runs commands periodically
anacron (rpm) - 一个可以运行在机器停运期间丢失的作业的程序，类似 cron。
animate (1) - animates an image or image sequence on any X server
ant-antlr (rpm) - 关于 ant 的可选的 antlr 任务
ant-apache-bcel (rpm) - 为 ant 选择 apache 的 bcel 库任务
ant-apache-log4j (rpm) - ant 的可选 apache log4j 任务
ant-apache-oro (rpm) - ant 的可选 apache oro 任务
ant-apache-regexp (rpm) - ant 的可选择 apache regexp 任务
ant-apache-resolver (rpm) - ant 的可选择 apache resolver 任务
ant-commons-logging (rpm) - ant 的可选择通用日志任务
AntiVirus [Mail::SpamAssassin::Plugin::AntiVirus] (3pm) - simple anti-virus tests
ant-javadoc (rpm) - ant 的 Javadoc
ant-javamail (rpm) - ant 的可选 javamail 任务
ant-jdepend (rpm) - ant 的可选的 jdepend 任务
ant-jsch (rpm) - ant 的可选 jsch 任务
ant-junit (rpm) - ant 的可选 junit 任务
antlr-javadoc (rpm) - 用于 antlr 的 Javadoc
antlr-manual (rpm) - antlr 手册
antlr (rpm) - 另一个语言识别工具
ant-manual (rpm) - ant 手册
ant-nodeps (rpm) - ant 的可选任务
ant (rpm) - java 的 Ant 构建工具
ant-scripts (rpm) - ant 的附加脚本
ant-swing (rpm) - ant 的可选择 swing 任务
ant-trax (rpm) - ant 的可选择 trax 任务
AnyDBM_File (3pm) - provide framework for multiple DBMs
anytopnm (1) - convert an arbitrary type of image file to PBM, PGM, or PPM
aplay (1) - command-line sound recorder and player for ALSA soundcard driver
aplaymidi (1) - play Standard MIDI Files
apm (1) - interface with the APM subsystem
apm (4) - Alliance ProMotion video driver
apmd (8) - Advanced Power Management (APM) daemon
apmd (rpm) - 用于便携电脑的高级电源管理 (APM) BIOS 工具程序。
apmsleep (1) - go into suspend or standby mode and wake-up later
apropos (1) - search the whatis database for strings
apr (rpm) - 可移植的 Apache 运行时间库。
apr-util (rpm) - Apache 可移植运行时间库。
ar (1) - create, modify, and extract from archives
ar (1p) - create and maintain library archives
arch (1) - print machine architecture
Archive::Tar (3pm) - module for manipulations of tar archives
Archive::Tar::File (3pm) - a subclass for in-memory extracted file from Archive::Tar
arch_prctl (2) - set architecture specific thread state
arecord [aplay] (1) - command-line sound recorder and player for ALSA soundcard driver
arecordmidi (1) - record Standard MIDI Files
argz_add (3) - functions to handle an argz list
argz_add_sep [argz_add] (3) - functions to handle an argz list
argz_append [argz_add] (3) - functions to handle an argz list
argz_count [argz_add] (3) - functions to handle an argz list
argz_create [argz_add] (3) - functions to handle an argz list
argz_create_sep [argz_add] (3) - functions to handle an argz list
argz_delete [argz_add] (3) - functions to handle an argz list
argz_extract [argz_add] (3) - functions to handle an argz list
argz_insert [argz_add] (3) - functions to handle an argz list
argz_next [argz_add] (3) - functions to handle an argz list
argz_replace [argz_add] (3) - functions to handle an argz list
argz_stringify [argz_add] (3) - functions to handle an argz list
arp (7) - Linux ARP kernel module
arp (8) - manipulate the system ARP cache
arpa/inet.h [inet] (0p) - definitions for internet operations
arping (8) - send ARP REQUEST to a neighbour host
arts-devel (rpm) - 用于 aRts 声音服务器的开发文件
arts (rpm) - aRts (模拟实时合成器) - KDE声音系统
asa (1p) - interpret carriage-control characters
AS [as] (1) - the portable GNU assembler
ascii (7) - the ASCII character set encoded in octal, decimal, and hexadecimal
asciitopgm (1) - convert ASCII graphics into a PGM
ascii-xfr (1) - upload/download files using the ASCII protocol
asctime (3p) - convert date and time to a string
asctime [ctime] (3) - transform date and time to broken-down time or ASCII
asctime_r [asctime] (3p) - convert date and time to a string
asctime_r [ctime] (3) - transform date and time to broken-down time or ASCII
aseqdump (1) - show the events received at an ALSA sequencer port
aseqnet (1) - ALSA sequencer connectors over network
asin (3) - arc sine function
asin (3p) - arc sine function
asinf [asin] (3) - arc sine function
asinf [asin] (3p) - arc sine function
asinh (3) - inverse hyperbolic sine function
asinh (3p) - inverse hyperbolic sine functions
asinhf [asinh] (3) - inverse hyperbolic sine function
asinhf [asinh] (3p) - inverse hyperbolic sine functions
asinhl [asinh] (3) - inverse hyperbolic sine function
asinhl [asinh] (3p) - inverse hyperbolic sine functions
asinl [asin] (3) - arc sine function
asinl [asin] (3p) - arc sine function
ASN1_generate_nconf (3ssl) - ASN1 generation functions
ASN1_generate_v3 [ASN1_generate_nconf] (3ssl) - ASN1 generation functions
ASN1_OBJECT_free, [ASN1_OBJECT_new] (3ssl) - object allocation functions
ASN1_OBJECT_new (3ssl) - object allocation functions
asn1parse (1ssl) - ASN.1 parsing tool
ASN1_STRING_cmp [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_data [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_dup [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_free [ASN1_STRING_new] (3ssl) - ASN1_STRING allocation functions
ASN1_STRING_length (3ssl) - ASN1_STRING utility functions
ASN1_STRING_length_set [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_new (3ssl) - ASN1_STRING allocation functions
ASN1_STRING_print_ex (3ssl) - ASN1_STRING output routines
ASN1_STRING_print_ex_fp [ASN1_STRING_print_ex] (3ssl) - ASN1_STRING output routines
ASN1_STRING_set [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_type [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_type_new [ASN1_STRING_new] (3ssl) - ASN1_STRING allocation functions
aspell (1) - interactive spell checker
aspell-en (rpm) - 用于 Aspell 的英语词典。
aspell-import (1) - import old personal dictionaries into GNU Aspell
aspell (rpm) - 拼写检查器。
asprintf (3) - print to allocated string
assert (3) - abort the program if assertion is false
assert (3p) - insert program diagnostics
assert.h [assert] (0p) - verify program assertion
assert_perror (3) - test errnum and abort
assume_default_colors [default_colors] (3x) - use terminal's default colors
at (1p) - execute commands at a later time
at (1) - queue, examine or delete jobs for later execution
ata_id (8) - udev callout to read product/serial number from ATA drives
at.allow [at] (5) - determine who can submit jobs via at or batch
atan2 (3) - arc tangent function of two variables
atan2 (3p) - arc tangent functions
atan2f [atan2] (3) - arc tangent function of two variables
atan2f [atan2] (3p) - arc tangent functions
atan2l [atan2] (3) - arc tangent function of two variables
atan2l [atan2] (3p) - arc tangent functions
atan (3) - arc tangent function
atan (3p) - arc tangent function
atanf [atan] (3) - arc tangent function
atanf [atan] (3p) - arc tangent function
atanh (3) - inverse hyperbolic tangent function
atanh (3p) - inverse hyperbolic tangent functions
atanhf [atanh] (3) - inverse hyperbolic tangent function
atanhf [atanh] (3p) - inverse hyperbolic tangent functions
atanhl [atanh] (3) - inverse hyperbolic tangent function
atanhl [atanh] (3p) - inverse hyperbolic tangent functions
atanl [atan] (3) - arc tangent function
atanl [atan] (3p) - arc tangent function
atd (8) - run jobs queued for later execution
at.deny [at] (5) - determine who can submit jobs via at or batch
atexit (3p) - register a function to run at process termination
atexit (3) - register a function to be called at normal process termination
atk-devel (rpm) - 用于布局和绘制国际化文本的系统。
atk (rpm) - Interfaces for accessibility support
atktopbm (1) - convert Andrew Toolkit raster object to PBM
atof (3) - convert a string to a double
atof (3p) - convert a string to a double-precision number
atoi (3) - convert a string to an integer
atoi (3p) - convert a string to an integer
atol (3p) - convert a string to a long integer
atol [atoi] (3) - convert a string to an integer
atoll [atoi] (3) - convert a string to an integer
atoll [atol] (3p) - convert a string to a long integer
atoq [atoi] (3) - convert a string to an integer
atq [at] (1) - queue, examine or delete jobs for later execution
atrm [at] (1) - queue, examine or delete jobs for later execution
at (rpm) - 作业假脱机工具。
atrun (8) - run jobs queued for later execution
at-spi-devel (rpm) - 用于 at-spi 的开发库和头文件
at-spi (rpm) - 协助性技术服务提供者界面
attr (1) - extended attributes on XFS filesystem objects
attr (5) - Extended attributes
attr_get (3) - get the value of a user attribute of a filesystem object
attr_get [curs_attr] (3x) - curses character and window attribute control routines
attr_getf [attr_get] (3) - get the value of a user attribute of a filesystem object
Attribute::Handlers (3pm) - Simpler definition of attribute handlers
attributes (3pm) - get/set subroutine or variable attributes
attr_list (3) - list the names of the user attributes of a filesystem object
attr_listf [attr_list] (3) - list the names of the user attributes of a filesystem object
attr_multi (3) - manipulate multiple user attributes on a filesystem object at once
attr_multif [attr_multi] (3) - manipulate multiple user attributes on a filesystem object at once
attr_off [curs_attr] (3x) - curses character and window attribute control routines
attroff [curs_attr] (3x) - curses character and window attribute control routines
attr_on [curs_attr] (3x) - curses character and window attribute control routines
attron [curs_attr] (3x) - curses character and window attribute control routines
attr_remove (3) - remove a user attribute of a filesystem object
attr_removef [attr_remove] (3) - remove a user attribute of a filesystem object
attr (rpm) - 管理文件系统的扩展属性的工具程序。
attrs (3pm) - set/get attributes of a subroutine (deprecated)
attr_set (3) - set the value of a user attribute of a filesystem object
attr_set [curs_attr] (3x) - curses character and window attribute control routines
attrset [curs_attr] (3x) - curses character and window attribute control routines
attr_setf [attr_set] (3) - set the value of a user attribute of a filesystem object
audiofile-devel (rpm) - 用于音频文件程序的开发文件.
audiofile (rpm) - 用于访问各种音频文件格式的库。
audit2allow (1) - generate policy allow rules from logs of denied operations
audit2why (8) - Translates SELinux audit messages into a description of why the access was denied
audit-libs-python (rpm) - Python bindings for libaudit
audit-libs (rpm) - libaudit 的动态库
authconfig (8) - tui - an interface for configuring system authentication resources
authconfig-gtk (rpm) - Graphical tool for setting up authentication from network services
authconfig (rpm) - Command line tool for setting up authentication from network services
autoconf (1) - Generate configuration scripts
autoconf (rpm) - 用来自动配置源码的 GNU 工具。
autofs (5) - Format of the automounter maps
autofs (rpm) - 自动挂载和卸载文件系统的工具。
autoheader (1) - Create a template header for configure
AutoLoader (3pm) - load subroutines only on demand
autom4te (1) - Generate files and scripts thanks to M4
automake14 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake15 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake16 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake17 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake (rpm) - 自动创建 Makefiles 的 GNU 工具。
auto.master [auto] (5) - Master Map for automounter
automount (8) - manage autofs mount points
autoreconf (1) - Update generated configuration files
autorun (1) - automatically mounts/unmounts CDROMs and executes /path_to_cdrom/autorun after mounting
autorun (rpm) - 一个挂载光盘的工具。
autoscan (1) - Generate a preliminary configure.in
AutoSplit (3pm) - split a package for autoloading
autoupdate (1) - Update a configure.in to a newer Autoconf
autouse (3pm) - postpone load of modules until a function is used
autovbox (1) - ISDN voice box (sound converter)
avahi-daemon (8) - The Avahi mDNS/DNS-SD daemon
avahi-daemon.conf [avahi-daemon] (5) - avahi-daemon configuration file
avahi-devel (rpm) - Libraries and header files for avahi development
avahi-dnsconfd (8) - Unicast DNS server from mDNS/DNS-SD configuration daemon
avahi-dnsconfd.action [avahi-dnsconfd] (8) - avahi-dnsconfd action script
avahi-glib (rpm) - Glib libraries for avahi
avahi.hosts [avahi] (5) - avahi - daemon static host name file
avahi-qt3 (rpm) - Qt3 libraries for avahi
avahi (rpm) - Local network service discovery
avahi.service [avahi] (5) - avahi - daemon static service file
avalon-framework-javadoc (rpm) - avalon-framework 是 Javadoc 文档
avalon-framework-manual (rpm) - avalon-结构手册
avalon-framework (rpm) - 使用 Java 编辑的界面
avalon-logkit-javadoc (rpm) - avalon-logkit 的 Javadoc 文档
avalon-logkit (rpm) - Java 日志工具套件
avc_add_callback (3) - additional event notification for userspace object managers
avc_audit [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_av_stats [avc_cache_stats] (3) - obtain userspace AVC statistics
avc_cache_stats (3) - obtain userspace AVC statistics
avc_cleanup [avc_init] (3) - userspace AVC setup and teardown
avc_context_to_sid (3) - obtain and manipulate security ID's
avc_destroy [avc_init] (3) - userspace AVC setup and teardown
avc_entry_ref_init [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_has_perm (3) - obtain and audit SELinux access decisions
avc_has_perm_noaudit [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_init (3) - userspace AVC setup and teardown
avc_reset [avc_init] (3) - userspace AVC setup and teardown
avc_sid_stats [avc_cache_stats] (3) - obtain userspace AVC statistics
avc_sid_to_context [avc_context_to_sid] (3) - obtain and manipulate security ID's
avcstat (8) - Display SELinux AVC statistics
avctrl (8) - Bluetooth Audio/Video control utility
avmcapictrl (8) - Add, reset or remove active AVM cards and load firmware
awk (1p) - pattern scanning and processing language
axis (rpm) - Java 中的一个 SOAP 实现411toppm (1) - convert Sony Mavica .411 image to PPM
a2p (1) - Awk to Perl translator
a2ps (1) - format files for printing on a PostScript printer
a2ps (rpm) - 将文本及其它类型的文件转换成 PostScript(TM)。
a64l (3) - convert between long and base-64
a64l (3p) - convert between a 32-bit integer and a radix-64 ASCII string
abbrev [Text::Abbrev] (3pm) - create an abbreviation table from a list
abort (3) - cause abnormal program termination
abort (3p) - generate an abnormal process abort
abs (3) - compute the absolute value of an integer
abs (3p) - return an integer absolute value
ac (1) - print statistics about users' connect time
accept (2) - accept a connection on a socket
accept (3p) - accept a new connection on a socket
accept/reject [accept] (8) - accept/reject jobs sent to a destination
access (2) - check user's permissions for a file
access (3p) - determine accessibility of a file
access.conf [access] (5) - the login access control table file
acct (2) - switch process accounting on or off
acct (5) - execution accounting file
accton (8) - turns process accounting on or off
acecad (4) - Acecad Flair input driver
acl (5) - Access Control Lists
acl_add_perm (3) - add a permission to an ACL permission set
acl_calc_mask (3) - calculate the file group class mask
acl_check (3) - check an ACL for validity
acl_clear_perms (3) - clear all permissions from an ACL permission set
acl_cmp (3) - compare two ACLs
acl_copy_entry (3) - copy an ACL entry
acl_copy_ext (3) - copy an ACL from internal to external representation
acl_copy_int (3) - copy an ACL from external to internal representation
acl_create_entry (3) - create a new ACL entry
acl_delete_def_file (3) - delete a default ACL by filename
acl_delete_entry (3) - delete an ACL entry
acl_delete_perm (3) - delete a permission from an ACL permission set
acl_dup (3) - duplicate an ACL
acl_entries (3) - return the number of entries in an ACL
acl_equiv_mode (3) - check for an equivalent ACL
acl_error (3) - convert an ACL error code to a text message
acl_extended_fd (3) - test for information in the ACL by file descriptor
acl_extended_file (3) - test for information in ACLs by file name
acl_free (3) - release memory allocated to an ACL data object
acl_from_mode (3) - create an ACL from file permission bits
acl_from_text (3) - create an ACL from text
acl_get_entry (3) - get an ACL entry
acl_get_fd (3) - get an ACL by file descriptor
acl_get_file (3) - get an ACL by filename
acl_get_perm (3) - test for a permission in an ACL permission set
acl_get_permset (3) - retrieve the permission set from an ACL entry
acl_get_qualifier (3) - retrieve the qualifier from an ACL entry
acl_get_tag_type (3) - get the tag type of an ACL entry
acl_init (3) - initialize ACL working storage
acl (rpm) - 访问控制列表的工具程序。
acl_set_fd (3) - set an ACL by file descriptor
acl_set_file (3) - set an ACL by filename
acl_set_permset (3) - set the permission set in an ACL entry
acl_set_qualifier (3) - set the qualifier of an ACL entry
acl_set_tag_type (3) - set the tag type of an ACL entry
acl_size (3) - get the size of the external representation of an ACL
acl_to_any_text (3) - convert an ACL to text
acl_to_text (3) - convert an ACL to text
acl_valid (3) - validate an ACL
aconnect (1) - ALSA sequencer connection manager
acos (3) - arc cosine function
acos (3p) - arc cosine functions
acosf [acos] (3) - arc cosine function
acosf [acos] (3p) - arc cosine functions
acosh (3) - inverse hyperbolic cosine function
acosh (3p) - inverse hyperbolic cosine functions
acoshf [acosh] (3) - inverse hyperbolic cosine function
acoshf [acosh] (3p) - inverse hyperbolic cosine functions
acoshl [acosh] (3) - inverse hyperbolic cosine function
acoshl [acosh] (3p) - inverse hyperbolic cosine functions
acosl [acos] (3) - arc cosine function
acosl [acos] (3p) - arc cosine functions
acpid (8) - Advanced Configuration and Power Interface event daemon
acpid (rpm) - ACPI 事件守护程序
acpi_listen (8) - ACPI event listener
addch [curs_addch] (3x) - add a character (with attributes) to a curses window, then advance the cursor
addchnstr [curs_addchstr] (3x) - add a string of characters (and attributes) to a curses window
addchstr [curs_addchstr] (3x) - add a string of characters (and attributes) to a curses window
addftinfo (1) - add information to troff font files for use with groff
add_key (2) - Add a key to the kernel's key management facility
addmntent [getmntent] (3) - get file system descriptor file entry
addnstr [curs_addstr] (3x) - add a string of characters to a curses window and advance cursor
addnwstr [curs_addwstr] (3x) - add a string of wide characters to a curses window and advance cursor
addr2line (1) - convert addresses into file names and line numbers
addresses (1) - Dumps the Palm Address Book entries to STDOUT in a simple format
addseverity (3) - introduce new severity classes
addstr [curs_addstr] (3x) - add a string of characters to a curses window and advance cursor
add_wch [curs_add_wch] (3x) - add a complex character and rendition to a curses window, then advance the cursor
add_wchnstr [curs_add_wchstr] (3x) - add an array of complex characters (and attributes) to a curses window
add_wchstr [curs_add_wchstr] (3x) - add an array of complex characters (and attributes) to a curses window
addwstr [curs_addwstr] (3x) - add a string of wide characters to a curses window and advance cursor
adjtime (3) - correct the time to synchronise the system clock
adjtimex (2) - tune kernel clock
admin (1p) - create and administer SCCS files (DEVELOPMENT)
adsl-connect (8) - Shell script to manage a PPPoE link
adsl-setup (8) - Shell script to configure Roaring Penguin PPPoE client
adsl-start (8) - Shell script to bring up a PPPoE link
adsl-status (8) - Shell script to report on status of PPPoE link
adsl-stop (8) - Shell script to shut down a PPPoE link
AF_LOCAL [unix] (7) - Sockets for local interprocess communication
afs5log (1) - AFS token initializer
afs_syscall [unimplemented] (2) - unimplemented system calls
__after_morecore_hook [malloc_hook] (3) - malloc debugging variables
AF_UNIX [unix] (7) - Sockets for local interprocess communication
agetty (8) - alternative Linux getty
agg (rpm) - Anti-Grain Geometry
aio_cancel (3) - cancel an outstanding asynchronous I/O request
aio_cancel (3p) - cancel an asynchronous I/O request (REALTIME)
aio_error (3) - get error status of asynchronous I/O operation
aio_error (3p) - retrieve errors status for an asynchronous I/O operation (REALTIME)
aio_fsync (3) - asynchronous file synchronization
aio_fsync (3p) - asynchronous file synchronization (REALTIME)
aio.h [aio] (0p) - asynchronous input and output (REALTIME)
aio_read (3) - asynchronous read
aio_read (3p) - asynchronous read from a file (REALTIME)
aio_return (3) - get return status of asynchronous I/O operation
aio_return (3p) - retrieve return status of an asynchronous I/O operation (REALTIME)
aio_suspend (3p) - wait for an asynchronous I/O request (REALTIME)
aio_suspend (3) - wait for asynchronous I/O operation or timeout
aio_write (3) - asynchronous write
aio_write (3p) - asynchronous write to a file (REALTIME)
aiptek (4) - Aiptek USB Digital Tablet Input Driver for Linux
alarm (2) - set an alarm clock for delivery of a signal
alarm (3p) - schedule an alarm signal
alias (1p) - define or display aliases
alias [builtins] (1) - bash built-in commands, see bash(1)
aliases (5) - aliases file for sendmail
alloca (3) - memory allocator
alloc_hugepages (2) - allocate or free huge pages
AllPlanes (3x) - Display macros and functions
alphasort [scandir] (3) - scan a directory for matching entries
alsactl (1) - advanced controls for ALSA soundcard driver
alsa-lib-devel (rpm) - ALSA 库的静态库和头文件。
alsa-lib (rpm) - 高级 Linux 声音体系结构（ALSA）库。
alsamixer (1) - soundcard mixer for ALSA soundcard driver, with ncurses interface
alsa-utils (rpm) - 高级 Linux 声音体系结构（ALSA）工具。
alternatives (8) - maintain symbolic links determining default commands
amidi (1) - read from and write to ALSA RawMIDI ports
amixer (1) - command-line mixer for ALSA soundcard driver
anacron (8) - runs commands periodically
anacron (rpm) - 一个可以运行在机器停运期间丢失的作业的程序，类似 cron。
animate (1) - animates an image or image sequence on any X server
ant-antlr (rpm) - 关于 ant 的可选的 antlr 任务
ant-apache-bcel (rpm) - 为 ant 选择 apache 的 bcel 库任务
ant-apache-log4j (rpm) - ant 的可选 apache log4j 任务
ant-apache-oro (rpm) - ant 的可选 apache oro 任务
ant-apache-regexp (rpm) - ant 的可选择 apache regexp 任务
ant-apache-resolver (rpm) - ant 的可选择 apache resolver 任务
ant-commons-logging (rpm) - ant 的可选择通用日志任务
AntiVirus [Mail::SpamAssassin::Plugin::AntiVirus] (3pm) - simple anti-virus tests
ant-javadoc (rpm) - ant 的 Javadoc
ant-javamail (rpm) - ant 的可选 javamail 任务
ant-jdepend (rpm) - ant 的可选的 jdepend 任务
ant-jsch (rpm) - ant 的可选 jsch 任务
ant-junit (rpm) - ant 的可选 junit 任务
antlr-javadoc (rpm) - 用于 antlr 的 Javadoc
antlr-manual (rpm) - antlr 手册
antlr (rpm) - 另一个语言识别工具
ant-manual (rpm) - ant 手册
ant-nodeps (rpm) - ant 的可选任务
ant (rpm) - java 的 Ant 构建工具
ant-scripts (rpm) - ant 的附加脚本
ant-swing (rpm) - ant 的可选择 swing 任务
ant-trax (rpm) - ant 的可选择 trax 任务
AnyDBM_File (3pm) - provide framework for multiple DBMs
anytopnm (1) - convert an arbitrary type of image file to PBM, PGM, or PPM
aplay (1) - command-line sound recorder and player for ALSA soundcard driver
aplaymidi (1) - play Standard MIDI Files
apm (1) - interface with the APM subsystem
apm (4) - Alliance ProMotion video driver
apmd (8) - Advanced Power Management (APM) daemon
apmd (rpm) - 用于便携电脑的高级电源管理 (APM) BIOS 工具程序。
apmsleep (1) - go into suspend or standby mode and wake-up later
apropos (1) - search the whatis database for strings
apr (rpm) - 可移植的 Apache 运行时间库。
apr-util (rpm) - Apache 可移植运行时间库。
ar (1) - create, modify, and extract from archives
ar (1p) - create and maintain library archives
arch (1) - print machine architecture
Archive::Tar (3pm) - module for manipulations of tar archives
Archive::Tar::File (3pm) - a subclass for in-memory extracted file from Archive::Tar
arch_prctl (2) - set architecture specific thread state
arecord [aplay] (1) - command-line sound recorder and player for ALSA soundcard driver
arecordmidi (1) - record Standard MIDI Files
argz_add (3) - functions to handle an argz list
argz_add_sep [argz_add] (3) - functions to handle an argz list
argz_append [argz_add] (3) - functions to handle an argz list
argz_count [argz_add] (3) - functions to handle an argz list
argz_create [argz_add] (3) - functions to handle an argz list
argz_create_sep [argz_add] (3) - functions to handle an argz list
argz_delete [argz_add] (3) - functions to handle an argz list
argz_extract [argz_add] (3) - functions to handle an argz list
argz_insert [argz_add] (3) - functions to handle an argz list
argz_next [argz_add] (3) - functions to handle an argz list
argz_replace [argz_add] (3) - functions to handle an argz list
argz_stringify [argz_add] (3) - functions to handle an argz list
arp (7) - Linux ARP kernel module
arp (8) - manipulate the system ARP cache
arpa/inet.h [inet] (0p) - definitions for internet operations
arping (8) - send ARP REQUEST to a neighbour host
arts-devel (rpm) - 用于 aRts 声音服务器的开发文件
arts (rpm) - aRts (模拟实时合成器) - KDE声音系统
asa (1p) - interpret carriage-control characters
AS [as] (1) - the portable GNU assembler
ascii (7) - the ASCII character set encoded in octal, decimal, and hexadecimal
asciitopgm (1) - convert ASCII graphics into a PGM
ascii-xfr (1) - upload/download files using the ASCII protocol
asctime (3p) - convert date and time to a string
asctime [ctime] (3) - transform date and time to broken-down time or ASCII
asctime_r [asctime] (3p) - convert date and time to a string
asctime_r [ctime] (3) - transform date and time to broken-down time or ASCII
aseqdump (1) - show the events received at an ALSA sequencer port
aseqnet (1) - ALSA sequencer connectors over network
asin (3) - arc sine function
asin (3p) - arc sine function
asinf [asin] (3) - arc sine function
asinf [asin] (3p) - arc sine function
asinh (3) - inverse hyperbolic sine function
asinh (3p) - inverse hyperbolic sine functions
asinhf [asinh] (3) - inverse hyperbolic sine function
asinhf [asinh] (3p) - inverse hyperbolic sine functions
asinhl [asinh] (3) - inverse hyperbolic sine function
asinhl [asinh] (3p) - inverse hyperbolic sine functions
asinl [asin] (3) - arc sine function
asinl [asin] (3p) - arc sine function
ASN1_generate_nconf (3ssl) - ASN1 generation functions
ASN1_generate_v3 [ASN1_generate_nconf] (3ssl) - ASN1 generation functions
ASN1_OBJECT_free, [ASN1_OBJECT_new] (3ssl) - object allocation functions
ASN1_OBJECT_new (3ssl) - object allocation functions
asn1parse (1ssl) - ASN.1 parsing tool
ASN1_STRING_cmp [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_data [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_dup [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_free [ASN1_STRING_new] (3ssl) - ASN1_STRING allocation functions
ASN1_STRING_length (3ssl) - ASN1_STRING utility functions
ASN1_STRING_length_set [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_new (3ssl) - ASN1_STRING allocation functions
ASN1_STRING_print_ex (3ssl) - ASN1_STRING output routines
ASN1_STRING_print_ex_fp [ASN1_STRING_print_ex] (3ssl) - ASN1_STRING output routines
ASN1_STRING_set [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_type [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_type_new [ASN1_STRING_new] (3ssl) - ASN1_STRING allocation functions
aspell (1) - interactive spell checker
aspell-en (rpm) - 用于 Aspell 的英语词典。
aspell-import (1) - import old personal dictionaries into GNU Aspell
aspell (rpm) - 拼写检查器。
asprintf (3) - print to allocated string
assert (3) - abort the program if assertion is false
assert (3p) - insert program diagnostics
assert.h [assert] (0p) - verify program assertion
assert_perror (3) - test errnum and abort
assume_default_colors [default_colors] (3x) - use terminal's default colors
at (1p) - execute commands at a later time
at (1) - queue, examine or delete jobs for later execution
ata_id (8) - udev callout to read product/serial number from ATA drives
at.allow [at] (5) - determine who can submit jobs via at or batch
atan2 (3) - arc tangent function of two variables
atan2 (3p) - arc tangent functions
atan2f [atan2] (3) - arc tangent function of two variables
atan2f [atan2] (3p) - arc tangent functions
atan2l [atan2] (3) - arc tangent function of two variables
atan2l [atan2] (3p) - arc tangent functions
atan (3) - arc tangent function
atan (3p) - arc tangent function
atanf [atan] (3) - arc tangent function
atanf [atan] (3p) - arc tangent function
atanh (3) - inverse hyperbolic tangent function
atanh (3p) - inverse hyperbolic tangent functions
atanhf [atanh] (3) - inverse hyperbolic tangent function
atanhf [atanh] (3p) - inverse hyperbolic tangent functions
atanhl [atanh] (3) - inverse hyperbolic tangent function
atanhl [atanh] (3p) - inverse hyperbolic tangent functions
atanl [atan] (3) - arc tangent function
atanl [atan] (3p) - arc tangent function
atd (8) - run jobs queued for later execution
at.deny [at] (5) - determine who can submit jobs via at or batch
atexit (3p) - register a function to run at process termination
atexit (3) - register a function to be called at normal process termination
atk-devel (rpm) - 用于布局和绘制国际化文本的系统。
atk (rpm) - Interfaces for accessibility support
atktopbm (1) - convert Andrew Toolkit raster object to PBM
atof (3) - convert a string to a double
atof (3p) - convert a string to a double-precision number
atoi (3) - convert a string to an integer
atoi (3p) - convert a string to an integer
atol (3p) - convert a string to a long integer
atol [atoi] (3) - convert a string to an integer
atoll [atoi] (3) - convert a string to an integer
atoll [atol] (3p) - convert a string to a long integer
atoq [atoi] (3) - convert a string to an integer
atq [at] (1) - queue, examine or delete jobs for later execution
atrm [at] (1) - queue, examine or delete jobs for later execution
at (rpm) - 作业假脱机工具。
atrun (8) - run jobs queued for later execution
at-spi-devel (rpm) - 用于 at-spi 的开发库和头文件
at-spi (rpm) - 协助性技术服务提供者界面
attr (1) - extended attributes on XFS filesystem objects
attr (5) - Extended attributes
attr_get (3) - get the value of a user attribute of a filesystem object
attr_get [curs_attr] (3x) - curses character and window attribute control routines
attr_getf [attr_get] (3) - get the value of a user attribute of a filesystem object
Attribute::Handlers (3pm) - Simpler definition of attribute handlers
attributes (3pm) - get/set subroutine or variable attributes
attr_list (3) - list the names of the user attributes of a filesystem object
attr_listf [attr_list] (3) - list the names of the user attributes of a filesystem object
attr_multi (3) - manipulate multiple user attributes on a filesystem object at once
attr_multif [attr_multi] (3) - manipulate multiple user attributes on a filesystem object at once
attr_off [curs_attr] (3x) - curses character and window attribute control routines
attroff [curs_attr] (3x) - curses character and window attribute control routines
attr_on [curs_attr] (3x) - curses character and window attribute control routines
attron [curs_attr] (3x) - curses character and window attribute control routines
attr_remove (3) - remove a user attribute of a filesystem object
attr_removef [attr_remove] (3) - remove a user attribute of a filesystem object
attr (rpm) - 管理文件系统的扩展属性的工具程序。
attrs (3pm) - set/get attributes of a subroutine (deprecated)
attr_set (3) - set the value of a user attribute of a filesystem object
attr_set [curs_attr] (3x) - curses character and window attribute control routines
attrset [curs_attr] (3x) - curses character and window attribute control routines
attr_setf [attr_set] (3) - set the value of a user attribute of a filesystem object
audiofile-devel (rpm) - 用于音频文件程序的开发文件.
audiofile (rpm) - 用于访问各种音频文件格式的库。
audit2allow (1) - generate policy allow rules from logs of denied operations
audit2why (8) - Translates SELinux audit messages into a description of why the access was denied
audit-libs-python (rpm) - Python bindings for libaudit
audit-libs (rpm) - libaudit 的动态库
authconfig (8) - tui - an interface for configuring system authentication resources
authconfig-gtk (rpm) - Graphical tool for setting up authentication from network services
authconfig (rpm) - Command line tool for setting up authentication from network services
autoconf (1) - Generate configuration scripts
autoconf (rpm) - 用来自动配置源码的 GNU 工具。
autofs (5) - Format of the automounter maps
autofs (rpm) - 自动挂载和卸载文件系统的工具。
autoheader (1) - Create a template header for configure
AutoLoader (3pm) - load subroutines only on demand
autom4te (1) - Generate files and scripts thanks to M4
automake14 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake15 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake16 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake17 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake (rpm) - 自动创建 Makefiles 的 GNU 工具。
auto.master [auto] (5) - Master Map for automounter
automount (8) - manage autofs mount points
autoreconf (1) - Update generated configuration files
autorun (1) - automatically mounts/unmounts CDROMs and executes /path_to_cdrom/autorun after mounting
autorun (rpm) - 一个挂载光盘的工具。
autoscan (1) - Generate a preliminary configure.in
AutoSplit (3pm) - split a package for autoloading
autoupdate (1) - Update a configure.in to a newer Autoconf
autouse (3pm) - postpone load of modules until a function is used
autovbox (1) - ISDN voice box (sound converter)
avahi-daemon (8) - The Avahi mDNS/DNS-SD daemon
avahi-daemon.conf [avahi-daemon] (5) - avahi-daemon configuration file
avahi-devel (rpm) - Libraries and header files for avahi development
avahi-dnsconfd (8) - Unicast DNS server from mDNS/DNS-SD configuration daemon
avahi-dnsconfd.action [avahi-dnsconfd] (8) - avahi-dnsconfd action script
avahi-glib (rpm) - Glib libraries for avahi
avahi.hosts [avahi] (5) - avahi - daemon static host name file
avahi-qt3 (rpm) - Qt3 libraries for avahi
avahi (rpm) - Local network service discovery
avahi.service [avahi] (5) - avahi - daemon static service file
avalon-framework-javadoc (rpm) - avalon-framework 是 Javadoc 文档
avalon-framework-manual (rpm) - avalon-结构手册
avalon-framework (rpm) - 使用 Java 编辑的界面
avalon-logkit-javadoc (rpm) - avalon-logkit 的 Javadoc 文档
avalon-logkit (rpm) - Java 日志工具套件
avc_add_callback (3) - additional event notification for userspace object managers
avc_audit [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_av_stats [avc_cache_stats] (3) - obtain userspace AVC statistics
avc_cache_stats (3) - obtain userspace AVC statistics
avc_cleanup [avc_init] (3) - userspace AVC setup and teardown
avc_context_to_sid (3) - obtain and manipulate security ID's
avc_destroy [avc_init] (3) - userspace AVC setup and teardown
avc_entry_ref_init [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_has_perm (3) - obtain and audit SELinux access decisions
avc_has_perm_noaudit [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_init (3) - userspace AVC setup and teardown
avc_reset [avc_init] (3) - userspace AVC setup and teardown
avc_sid_stats [avc_cache_stats] (3) - obtain userspace AVC statistics
avc_sid_to_context [avc_context_to_sid] (3) - obtain and manipulate security ID's
avcstat (8) - Display SELinux AVC statistics
avctrl (8) - Bluetooth Audio/Video control utility
avmcapictrl (8) - Add, reset or remove active AVM cards and load firmware
awk (1p) - pattern scanning and processing language
axis (rpm) - Java 中的一个 SOAP 实现
411toppm (1) - convert Sony Mavica .411 image to PPM
a2p (1) - Awk to Perl translator
a2ps (1) - format files for printing on a PostScript printer
a2ps (rpm) - 将文本及其它类型的文件转换成 PostScript(TM)。
a64l (3) - convert between long and base-64
a64l (3p) - convert between a 32-bit integer and a radix-64 ASCII string
abbrev [Text::Abbrev] (3pm) - create an abbreviation table from a list
abort (3) - cause abnormal program termination
abort (3p) - generate an abnormal process abort
abs (3) - compute the absolute value of an integer
abs (3p) - return an integer absolute value
ac (1) - print statistics about users' connect time
accept (2) - accept a connection on a socket
accept (3p) - accept a new connection on a socket
accept/reject [accept] (8) - accept/reject jobs sent to a destination
access (2) - check user's permissions for a file
access (3p) - determine accessibility of a file
access.conf [access] (5) - the login access control table file
acct (2) - switch process accounting on or off
acct (5) - execution accounting file
accton (8) - turns process accounting on or off
acecad (4) - Acecad Flair input driver
acl (5) - Access Control Lists
acl_add_perm (3) - add a permission to an ACL permission set
acl_calc_mask (3) - calculate the file group class mask
acl_check (3) - check an ACL for validity
acl_clear_perms (3) - clear all permissions from an ACL permission set
acl_cmp (3) - compare two ACLs
acl_copy_entry (3) - copy an ACL entry
acl_copy_ext (3) - copy an ACL from internal to external representation
acl_copy_int (3) - copy an ACL from external to internal representation
acl_create_entry (3) - create a new ACL entry
acl_delete_def_file (3) - delete a default ACL by filename
acl_delete_entry (3) - delete an ACL entry
acl_delete_perm (3) - delete a permission from an ACL permission set
acl_dup (3) - duplicate an ACL
acl_entries (3) - return the number of entries in an ACL
acl_equiv_mode (3) - check for an equivalent ACL
acl_error (3) - convert an ACL error code to a text message
acl_extended_fd (3) - test for information in the ACL by file descriptor
acl_extended_file (3) - test for information in ACLs by file name
acl_free (3) - release memory allocated to an ACL data object
acl_from_mode (3) - create an ACL from file permission bits
acl_from_text (3) - create an ACL from text
acl_get_entry (3) - get an ACL entry
acl_get_fd (3) - get an ACL by file descriptor
acl_get_file (3) - get an ACL by filename
acl_get_perm (3) - test for a permission in an ACL permission set
acl_get_permset (3) - retrieve the permission set from an ACL entry
acl_get_qualifier (3) - retrieve the qualifier from an ACL entry
acl_get_tag_type (3) - get the tag type of an ACL entry
acl_init (3) - initialize ACL working storage
acl (rpm) - 访问控制列表的工具程序。
acl_set_fd (3) - set an ACL by file descriptor
acl_set_file (3) - set an ACL by filename
acl_set_permset (3) - set the permission set in an ACL entry
acl_set_qualifier (3) - set the qualifier of an ACL entry
acl_set_tag_type (3) - set the tag type of an ACL entry
acl_size (3) - get the size of the external representation of an ACL
acl_to_any_text (3) - convert an ACL to text
acl_to_text (3) - convert an ACL to text
acl_valid (3) - validate an ACL
aconnect (1) - ALSA sequencer connection manager
acos (3) - arc cosine function
acos (3p) - arc cosine functions
acosf [acos] (3) - arc cosine function
acosf [acos] (3p) - arc cosine functions
acosh (3) - inverse hyperbolic cosine function
acosh (3p) - inverse hyperbolic cosine functions
acoshf [acosh] (3) - inverse hyperbolic cosine function
acoshf [acosh] (3p) - inverse hyperbolic cosine functions
acoshl [acosh] (3) - inverse hyperbolic cosine function
acoshl [acosh] (3p) - inverse hyperbolic cosine functions
acosl [acos] (3) - arc cosine function
acosl [acos] (3p) - arc cosine functions
acpid (8) - Advanced Configuration and Power Interface event daemon
acpid (rpm) - ACPI 事件守护程序
acpi_listen (8) - ACPI event listener
addch [curs_addch] (3x) - add a character (with attributes) to a curses window, then advance the cursor
addchnstr [curs_addchstr] (3x) - add a string of characters (and attributes) to a curses window
addchstr [curs_addchstr] (3x) - add a string of characters (and attributes) to a curses window
addftinfo (1) - add information to troff font files for use with groff
add_key (2) - Add a key to the kernel's key management facility
addmntent [getmntent] (3) - get file system descriptor file entry
addnstr [curs_addstr] (3x) - add a string of characters to a curses window and advance cursor
addnwstr [curs_addwstr] (3x) - add a string of wide characters to a curses window and advance cursor
addr2line (1) - convert addresses into file names and line numbers
addresses (1) - Dumps the Palm Address Book entries to STDOUT in a simple format
addseverity (3) - introduce new severity classes
addstr [curs_addstr] (3x) - add a string of characters to a curses window and advance cursor
add_wch [curs_add_wch] (3x) - add a complex character and rendition to a curses window, then advance the cursor
add_wchnstr [curs_add_wchstr] (3x) - add an array of complex characters (and attributes) to a curses window
add_wchstr [curs_add_wchstr] (3x) - add an array of complex characters (and attributes) to a curses window
addwstr [curs_addwstr] (3x) - add a string of wide characters to a curses window and advance cursor
adjtime (3) - correct the time to synchronise the system clock
adjtimex (2) - tune kernel clock
admin (1p) - create and administer SCCS files (DEVELOPMENT)
adsl-connect (8) - Shell script to manage a PPPoE link
adsl-setup (8) - Shell script to configure Roaring Penguin PPPoE client
adsl-start (8) - Shell script to bring up a PPPoE link
adsl-status (8) - Shell script to report on status of PPPoE link
adsl-stop (8) - Shell script to shut down a PPPoE link
AF_LOCAL [unix] (7) - Sockets for local interprocess communication
afs5log (1) - AFS token initializer
afs_syscall [unimplemented] (2) - unimplemented system calls
__after_morecore_hook [malloc_hook] (3) - malloc debugging variables
AF_UNIX [unix] (7) - Sockets for local interprocess communication
agetty (8) - alternative Linux getty
agg (rpm) - Anti-Grain Geometry
aio_cancel (3) - cancel an outstanding asynchronous I/O request
aio_cancel (3p) - cancel an asynchronous I/O request (REALTIME)
aio_error (3) - get error status of asynchronous I/O operation
aio_error (3p) - retrieve errors status for an asynchronous I/O operation (REALTIME)
aio_fsync (3) - asynchronous file synchronization
aio_fsync (3p) - asynchronous file synchronization (REALTIME)
aio.h [aio] (0p) - asynchronous input and output (REALTIME)
aio_read (3) - asynchronous read
aio_read (3p) - asynchronous read from a file (REALTIME)
aio_return (3) - get return status of asynchronous I/O operation
aio_return (3p) - retrieve return status of an asynchronous I/O operation (REALTIME)
aio_suspend (3p) - wait for an asynchronous I/O request (REALTIME)
aio_suspend (3) - wait for asynchronous I/O operation or timeout
aio_write (3) - asynchronous write
aio_write (3p) - asynchronous write to a file (REALTIME)
aiptek (4) - Aiptek USB Digital Tablet Input Driver for Linux
alarm (2) - set an alarm clock for delivery of a signal
alarm (3p) - schedule an alarm signal
alias (1p) - define or display aliases
alias [builtins] (1) - bash built-in commands, see bash(1)
aliases (5) - aliases file for sendmail
alloca (3) - memory allocator
alloc_hugepages (2) - allocate or free huge pages
AllPlanes (3x) - Display macros and functions
alphasort [scandir] (3) - scan a directory for matching entries
alsactl (1) - advanced controls for ALSA soundcard driver
alsa-lib-devel (rpm) - ALSA 库的静态库和头文件。
alsa-lib (rpm) - 高级 Linux 声音体系结构（ALSA）库。
alsamixer (1) - soundcard mixer for ALSA soundcard driver, with ncurses interface
alsa-utils (rpm) - 高级 Linux 声音体系结构（ALSA）工具。
alternatives (8) - maintain symbolic links determining default commands
amidi (1) - read from and write to ALSA RawMIDI ports
amixer (1) - command-line mixer for ALSA soundcard driver
anacron (8) - runs commands periodically
anacron (rpm) - 一个可以运行在机器停运期间丢失的作业的程序，类似 cron。
animate (1) - animates an image or image sequence on any X server
ant-antlr (rpm) - 关于 ant 的可选的 antlr 任务
ant-apache-bcel (rpm) - 为 ant 选择 apache 的 bcel 库任务
ant-apache-log4j (rpm) - ant 的可选 apache log4j 任务
ant-apache-oro (rpm) - ant 的可选 apache oro 任务
ant-apache-regexp (rpm) - ant 的可选择 apache regexp 任务
ant-apache-resolver (rpm) - ant 的可选择 apache resolver 任务
ant-commons-logging (rpm) - ant 的可选择通用日志任务
AntiVirus [Mail::SpamAssassin::Plugin::AntiVirus] (3pm) - simple anti-virus tests
ant-javadoc (rpm) - ant 的 Javadoc
ant-javamail (rpm) - ant 的可选 javamail 任务
ant-jdepend (rpm) - ant 的可选的 jdepend 任务
ant-jsch (rpm) - ant 的可选 jsch 任务
ant-junit (rpm) - ant 的可选 junit 任务
antlr-javadoc (rpm) - 用于 antlr 的 Javadoc
antlr-manual (rpm) - antlr 手册
antlr (rpm) - 另一个语言识别工具
ant-manual (rpm) - ant 手册
ant-nodeps (rpm) - ant 的可选任务
ant (rpm) - java 的 Ant 构建工具
ant-scripts (rpm) - ant 的附加脚本
ant-swing (rpm) - ant 的可选择 swing 任务
ant-trax (rpm) - ant 的可选择 trax 任务
AnyDBM_File (3pm) - provide framework for multiple DBMs
anytopnm (1) - convert an arbitrary type of image file to PBM, PGM, or PPM
aplay (1) - command-line sound recorder and player for ALSA soundcard driver
aplaymidi (1) - play Standard MIDI Files
apm (1) - interface with the APM subsystem
apm (4) - Alliance ProMotion video driver
apmd (8) - Advanced Power Management (APM) daemon
apmd (rpm) - 用于便携电脑的高级电源管理 (APM) BIOS 工具程序。
apmsleep (1) - go into suspend or standby mode and wake-up later
apropos (1) - search the whatis database for strings
apr (rpm) - 可移植的 Apache 运行时间库。
apr-util (rpm) - Apache 可移植运行时间库。
ar (1) - create, modify, and extract from archives
ar (1p) - create and maintain library archives
arch (1) - print machine architecture
Archive::Tar (3pm) - module for manipulations of tar archives
Archive::Tar::File (3pm) - a subclass for in-memory extracted file from Archive::Tar
arch_prctl (2) - set architecture specific thread state
arecord [aplay] (1) - command-line sound recorder and player for ALSA soundcard driver
arecordmidi (1) - record Standard MIDI Files
argz_add (3) - functions to handle an argz list
argz_add_sep [argz_add] (3) - functions to handle an argz list
argz_append [argz_add] (3) - functions to handle an argz list
argz_count [argz_add] (3) - functions to handle an argz list
argz_create [argz_add] (3) - functions to handle an argz list
argz_create_sep [argz_add] (3) - functions to handle an argz list
argz_delete [argz_add] (3) - functions to handle an argz list
argz_extract [argz_add] (3) - functions to handle an argz list
argz_insert [argz_add] (3) - functions to handle an argz list
argz_next [argz_add] (3) - functions to handle an argz list
argz_replace [argz_add] (3) - functions to handle an argz list
argz_stringify [argz_add] (3) - functions to handle an argz list
arp (7) - Linux ARP kernel module
arp (8) - manipulate the system ARP cache
arpa/inet.h [inet] (0p) - definitions for internet operations
arping (8) - send ARP REQUEST to a neighbour host
arts-devel (rpm) - 用于 aRts 声音服务器的开发文件
arts (rpm) - aRts (模拟实时合成器) - KDE声音系统
asa (1p) - interpret carriage-control characters
AS [as] (1) - the portable GNU assembler
ascii (7) - the ASCII character set encoded in octal, decimal, and hexadecimal
asciitopgm (1) - convert ASCII graphics into a PGM
ascii-xfr (1) - upload/download files using the ASCII protocol
asctime (3p) - convert date and time to a string
asctime [ctime] (3) - transform date and time to broken-down time or ASCII
asctime_r [asctime] (3p) - convert date and time to a string
asctime_r [ctime] (3) - transform date and time to broken-down time or ASCII
aseqdump (1) - show the events received at an ALSA sequencer port
aseqnet (1) - ALSA sequencer connectors over network
asin (3) - arc sine function
asin (3p) - arc sine function
asinf [asin] (3) - arc sine function
asinf [asin] (3p) - arc sine function
asinh (3) - inverse hyperbolic sine function
asinh (3p) - inverse hyperbolic sine functions
asinhf [asinh] (3) - inverse hyperbolic sine function
asinhf [asinh] (3p) - inverse hyperbolic sine functions
asinhl [asinh] (3) - inverse hyperbolic sine function
asinhl [asinh] (3p) - inverse hyperbolic sine functions
asinl [asin] (3) - arc sine function
asinl [asin] (3p) - arc sine function
ASN1_generate_nconf (3ssl) - ASN1 generation functions
ASN1_generate_v3 [ASN1_generate_nconf] (3ssl) - ASN1 generation functions
ASN1_OBJECT_free, [ASN1_OBJECT_new] (3ssl) - object allocation functions
ASN1_OBJECT_new (3ssl) - object allocation functions
asn1parse (1ssl) - ASN.1 parsing tool
ASN1_STRING_cmp [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_data [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_dup [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_free [ASN1_STRING_new] (3ssl) - ASN1_STRING allocation functions
ASN1_STRING_length (3ssl) - ASN1_STRING utility functions
ASN1_STRING_length_set [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_new (3ssl) - ASN1_STRING allocation functions
ASN1_STRING_print_ex (3ssl) - ASN1_STRING output routines
ASN1_STRING_print_ex_fp [ASN1_STRING_print_ex] (3ssl) - ASN1_STRING output routines
ASN1_STRING_set [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_type [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_type_new [ASN1_STRING_new] (3ssl) - ASN1_STRING allocation functions
aspell (1) - interactive spell checker
aspell-en (rpm) - 用于 Aspell 的英语词典。
aspell-import (1) - import old personal dictionaries into GNU Aspell
aspell (rpm) - 拼写检查器。
asprintf (3) - print to allocated string
assert (3) - abort the program if assertion is false
assert (3p) - insert program diagnostics
assert.h [assert] (0p) - verify program assertion
assert_perror (3) - test errnum and abort
assume_default_colors [default_colors] (3x) - use terminal's default colors
at (1p) - execute commands at a later time
at (1) - queue, examine or delete jobs for later execution
ata_id (8) - udev callout to read product/serial number from ATA drives
at.allow [at] (5) - determine who can submit jobs via at or batch
atan2 (3) - arc tangent function of two variables
atan2 (3p) - arc tangent functions
atan2f [atan2] (3) - arc tangent function of two variables
atan2f [atan2] (3p) - arc tangent functions
atan2l [atan2] (3) - arc tangent function of two variables
atan2l [atan2] (3p) - arc tangent functions
atan (3) - arc tangent function
atan (3p) - arc tangent function
atanf [atan] (3) - arc tangent function
atanf [atan] (3p) - arc tangent function
atanh (3) - inverse hyperbolic tangent function
atanh (3p) - inverse hyperbolic tangent functions
atanhf [atanh] (3) - inverse hyperbolic tangent function
atanhf [atanh] (3p) - inverse hyperbolic tangent functions
atanhl [atanh] (3) - inverse hyperbolic tangent function
atanhl [atanh] (3p) - inverse hyperbolic tangent functions
atanl [atan] (3) - arc tangent function
atanl [atan] (3p) - arc tangent function
atd (8) - run jobs queued for later execution
at.deny [at] (5) - determine who can submit jobs via at or batch
atexit (3p) - register a function to run at process termination
atexit (3) - register a function to be called at normal process termination
atk-devel (rpm) - 用于布局和绘制国际化文本的系统。
atk (rpm) - Interfaces for accessibility support
atktopbm (1) - convert Andrew Toolkit raster object to PBM
atof (3) - convert a string to a double
atof (3p) - convert a string to a double-precision number
atoi (3) - convert a string to an integer
atoi (3p) - convert a string to an integer
atol (3p) - convert a string to a long integer
atol [atoi] (3) - convert a string to an integer
atoll [atoi] (3) - convert a string to an integer
atoll [atol] (3p) - convert a string to a long integer
atoq [atoi] (3) - convert a string to an integer
atq [at] (1) - queue, examine or delete jobs for later execution
atrm [at] (1) - queue, examine or delete jobs for later execution
at (rpm) - 作业假脱机工具。
atrun (8) - run jobs queued for later execution
at-spi-devel (rpm) - 用于 at-spi 的开发库和头文件
at-spi (rpm) - 协助性技术服务提供者界面
attr (1) - extended attributes on XFS filesystem objects
attr (5) - Extended attributes
attr_get (3) - get the value of a user attribute of a filesystem object
attr_get [curs_attr] (3x) - curses character and window attribute control routines
attr_getf [attr_get] (3) - get the value of a user attribute of a filesystem object
Attribute::Handlers (3pm) - Simpler definition of attribute handlers
attributes (3pm) - get/set subroutine or variable attributes
attr_list (3) - list the names of the user attributes of a filesystem object
attr_listf [attr_list] (3) - list the names of the user attributes of a filesystem object
attr_multi (3) - manipulate multiple user attributes on a filesystem object at once
attr_multif [attr_multi] (3) - manipulate multiple user attributes on a filesystem object at once
attr_off [curs_attr] (3x) - curses character and window attribute control routines
attroff [curs_attr] (3x) - curses character and window attribute control routines
attr_on [curs_attr] (3x) - curses character and window attribute control routines
attron [curs_attr] (3x) - curses character and window attribute control routines
attr_remove (3) - remove a user attribute of a filesystem object
attr_removef [attr_remove] (3) - remove a user attribute of a filesystem object
attr (rpm) - 管理文件系统的扩展属性的工具程序。
attrs (3pm) - set/get attributes of a subroutine (deprecated)
attr_set (3) - set the value of a user attribute of a filesystem object
attr_set [curs_attr] (3x) - curses character and window attribute control routines
attrset [curs_attr] (3x) - curses character and window attribute control routines
attr_setf [attr_set] (3) - set the value of a user attribute of a filesystem object
audiofile-devel (rpm) - 用于音频文件程序的开发文件.
audiofile (rpm) - 用于访问各种音频文件格式的库。
audit2allow (1) - generate policy allow rules from logs of denied operations
audit2why (8) - Translates SELinux audit messages into a description of why the access was denied
audit-libs-python (rpm) - Python bindings for libaudit
audit-libs (rpm) - libaudit 的动态库
authconfig (8) - tui - an interface for configuring system authentication resources
authconfig-gtk (rpm) - Graphical tool for setting up authentication from network services
authconfig (rpm) - Command line tool for setting up authentication from network services
autoconf (1) - Generate configuration scripts
autoconf (rpm) - 用来自动配置源码的 GNU 工具。
autofs (5) - Format of the automounter maps
autofs (rpm) - 自动挂载和卸载文件系统的工具。
autoheader (1) - Create a template header for configure
AutoLoader (3pm) - load subroutines only on demand
autom4te (1) - Generate files and scripts thanks to M4
automake14 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake15 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake16 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake17 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake (rpm) - 自动创建 Makefiles 的 GNU 工具。
auto.master [auto] (5) - Master Map for automounter
automount (8) - manage autofs mount points
autoreconf (1) - Update generated configuration files
autorun (1) - automatically mounts/unmounts CDROMs and executes /path_to_cdrom/autorun after mounting
autorun (rpm) - 一个挂载光盘的工具。
autoscan (1) - Generate a preliminary configure.in
AutoSplit (3pm) - split a package for autoloading
autoupdate (1) - Update a configure.in to a newer Autoconf
autouse (3pm) - postpone load of modules until a function is used
autovbox (1) - ISDN voice box (sound converter)
avahi-daemon (8) - The Avahi mDNS/DNS-SD daemon
avahi-daemon.conf [avahi-daemon] (5) - avahi-daemon configuration file
avahi-devel (rpm) - Libraries and header files for avahi development
avahi-dnsconfd (8) - Unicast DNS server from mDNS/DNS-SD configuration daemon
avahi-dnsconfd.action [avahi-dnsconfd] (8) - avahi-dnsconfd action script
avahi-glib (rpm) - Glib libraries for avahi
avahi.hosts [avahi] (5) - avahi - daemon static host name file
avahi-qt3 (rpm) - Qt3 libraries for avahi
avahi (rpm) - Local network service discovery
avahi.service [avahi] (5) - avahi - daemon static service file
avalon-framework-javadoc (rpm) - avalon-framework 是 Javadoc 文档
avalon-framework-manual (rpm) - avalon-结构手册
avalon-framework (rpm) - 使用 Java 编辑的界面
avalon-logkit-javadoc (rpm) - avalon-logkit 的 Javadoc 文档
avalon-logkit (rpm) - Java 日志工具套件
avc_add_callback (3) - additional event notification for userspace object managers
avc_audit [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_av_stats [avc_cache_stats] (3) - obtain userspace AVC statistics
avc_cache_stats (3) - obtain userspace AVC statistics
avc_cleanup [avc_init] (3) - userspace AVC setup and teardown
avc_context_to_sid (3) - obtain and manipulate security ID's
avc_destroy [avc_init] (3) - userspace AVC setup and teardown
avc_entry_ref_init [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_has_perm (3) - obtain and audit SELinux access decisions
avc_has_perm_noaudit [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_init (3) - userspace AVC setup and teardown
avc_reset [avc_init] (3) - userspace AVC setup and teardown
avc_sid_stats [avc_cache_stats] (3) - obtain userspace AVC statistics
avc_sid_to_context [avc_context_to_sid] (3) - obtain and manipulate security ID's
avcstat (8) - Display SELinux AVC statistics
avctrl (8) - Bluetooth Audio/Video control utility
avmcapictrl (8) - Add, reset or remove active AVM cards and load firmware
awk (1p) - pattern scanning and processing language
axis (rpm) - Java 中的一个 SOAP 实现411toppm (1) - convert Sony Mavica .411 image to PPM
a2p (1) - Awk to Perl translator
a2ps (1) - format files for printing on a PostScript printer
a2ps (rpm) - 将文本及其它类型的文件转换成 PostScript(TM)。
a64l (3) - convert between long and base-64
a64l (3p) - convert between a 32-bit integer and a radix-64 ASCII string
abbrev [Text::Abbrev] (3pm) - create an abbreviation table from a list
abort (3) - cause abnormal program termination
abort (3p) - generate an abnormal process abort
abs (3) - compute the absolute value of an integer
abs (3p) - return an integer absolute value
ac (1) - print statistics about users' connect time
accept (2) - accept a connection on a socket
accept (3p) - accept a new connection on a socket
accept/reject [accept] (8) - accept/reject jobs sent to a destination
access (2) - check user's permissions for a file
access (3p) - determine accessibility of a file
access.conf [access] (5) - the login access control table file
acct (2) - switch process accounting on or off
acct (5) - execution accounting file
accton (8) - turns process accounting on or off
acecad (4) - Acecad Flair input driver
acl (5) - Access Control Lists
acl_add_perm (3) - add a permission to an ACL permission set
acl_calc_mask (3) - calculate the file group class mask
acl_check (3) - check an ACL for validity
acl_clear_perms (3) - clear all permissions from an ACL permission set
acl_cmp (3) - compare two ACLs
acl_copy_entry (3) - copy an ACL entry
acl_copy_ext (3) - copy an ACL from internal to external representation
acl_copy_int (3) - copy an ACL from external to internal representation
acl_create_entry (3) - create a new ACL entry
acl_delete_def_file (3) - delete a default ACL by filename
acl_delete_entry (3) - delete an ACL entry
acl_delete_perm (3) - delete a permission from an ACL permission set
acl_dup (3) - duplicate an ACL
acl_entries (3) - return the number of entries in an ACL
acl_equiv_mode (3) - check for an equivalent ACL
acl_error (3) - convert an ACL error code to a text message
acl_extended_fd (3) - test for information in the ACL by file descriptor
acl_extended_file (3) - test for information in ACLs by file name
acl_free (3) - release memory allocated to an ACL data object
acl_from_mode (3) - create an ACL from file permission bits
acl_from_text (3) - create an ACL from text
acl_get_entry (3) - get an ACL entry
acl_get_fd (3) - get an ACL by file descriptor
acl_get_file (3) - get an ACL by filename
acl_get_perm (3) - test for a permission in an ACL permission set
acl_get_permset (3) - retrieve the permission set from an ACL entry
acl_get_qualifier (3) - retrieve the qualifier from an ACL entry
acl_get_tag_type (3) - get the tag type of an ACL entry
acl_init (3) - initialize ACL working storage
acl (rpm) - 访问控制列表的工具程序。
acl_set_fd (3) - set an ACL by file descriptor
acl_set_file (3) - set an ACL by filename
acl_set_permset (3) - set the permission set in an ACL entry
acl_set_qualifier (3) - set the qualifier of an ACL entry
acl_set_tag_type (3) - set the tag type of an ACL entry
acl_size (3) - get the size of the external representation of an ACL
acl_to_any_text (3) - convert an ACL to text
acl_to_text (3) - convert an ACL to text
acl_valid (3) - validate an ACL
aconnect (1) - ALSA sequencer connection manager
acos (3) - arc cosine function
acos (3p) - arc cosine functions
acosf [acos] (3) - arc cosine function
acosf [acos] (3p) - arc cosine functions
acosh (3) - inverse hyperbolic cosine function
acosh (3p) - inverse hyperbolic cosine functions
acoshf [acosh] (3) - inverse hyperbolic cosine function
acoshf [acosh] (3p) - inverse hyperbolic cosine functions
acoshl [acosh] (3) - inverse hyperbolic cosine function
acoshl [acosh] (3p) - inverse hyperbolic cosine functions
acosl [acos] (3) - arc cosine function
acosl [acos] (3p) - arc cosine functions
acpid (8) - Advanced Configuration and Power Interface event daemon
acpid (rpm) - ACPI 事件守护程序
acpi_listen (8) - ACPI event listener
addch [curs_addch] (3x) - add a character (with attributes) to a curses window, then advance the cursor
addchnstr [curs_addchstr] (3x) - add a string of characters (and attributes) to a curses window
addchstr [curs_addchstr] (3x) - add a string of characters (and attributes) to a curses window
addftinfo (1) - add information to troff font files for use with groff
add_key (2) - Add a key to the kernel's key management facility
addmntent [getmntent] (3) - get file system descriptor file entry
addnstr [curs_addstr] (3x) - add a string of characters to a curses window and advance cursor
addnwstr [curs_addwstr] (3x) - add a string of wide characters to a curses window and advance cursor
addr2line (1) - convert addresses into file names and line numbers
addresses (1) - Dumps the Palm Address Book entries to STDOUT in a simple format
addseverity (3) - introduce new severity classes
addstr [curs_addstr] (3x) - add a string of characters to a curses window and advance cursor
add_wch [curs_add_wch] (3x) - add a complex character and rendition to a curses window, then advance the cursor
add_wchnstr [curs_add_wchstr] (3x) - add an array of complex characters (and attributes) to a curses window
add_wchstr [curs_add_wchstr] (3x) - add an array of complex characters (and attributes) to a curses window
addwstr [curs_addwstr] (3x) - add a string of wide characters to a curses window and advance cursor
adjtime (3) - correct the time to synchronise the system clock
adjtimex (2) - tune kernel clock
admin (1p) - create and administer SCCS files (DEVELOPMENT)
adsl-connect (8) - Shell script to manage a PPPoE link
adsl-setup (8) - Shell script to configure Roaring Penguin PPPoE client
adsl-start (8) - Shell script to bring up a PPPoE link
adsl-status (8) - Shell script to report on status of PPPoE link
adsl-stop (8) - Shell script to shut down a PPPoE link
AF_LOCAL [unix] (7) - Sockets for local interprocess communication
afs5log (1) - AFS token initializer
afs_syscall [unimplemented] (2) - unimplemented system calls
__after_morecore_hook [malloc_hook] (3) - malloc debugging variables
AF_UNIX [unix] (7) - Sockets for local interprocess communication
agetty (8) - alternative Linux getty
agg (rpm) - Anti-Grain Geometry
aio_cancel (3) - cancel an outstanding asynchronous I/O request
aio_cancel (3p) - cancel an asynchronous I/O request (REALTIME)
aio_error (3) - get error status of asynchronous I/O operation
aio_error (3p) - retrieve errors status for an asynchronous I/O operation (REALTIME)
aio_fsync (3) - asynchronous file synchronization
aio_fsync (3p) - asynchronous file synchronization (REALTIME)
aio.h [aio] (0p) - asynchronous input and output (REALTIME)
aio_read (3) - asynchronous read
aio_read (3p) - asynchronous read from a file (REALTIME)
aio_return (3) - get return status of asynchronous I/O operation
aio_return (3p) - retrieve return status of an asynchronous I/O operation (REALTIME)
aio_suspend (3p) - wait for an asynchronous I/O request (REALTIME)
aio_suspend (3) - wait for asynchronous I/O operation or timeout
aio_write (3) - asynchronous write
aio_write (3p) - asynchronous write to a file (REALTIME)
aiptek (4) - Aiptek USB Digital Tablet Input Driver for Linux
alarm (2) - set an alarm clock for delivery of a signal
alarm (3p) - schedule an alarm signal
alias (1p) - define or display aliases
alias [builtins] (1) - bash built-in commands, see bash(1)
aliases (5) - aliases file for sendmail
alloca (3) - memory allocator
alloc_hugepages (2) - allocate or free huge pages
AllPlanes (3x) - Display macros and functions
alphasort [scandir] (3) - scan a directory for matching entries
alsactl (1) - advanced controls for ALSA soundcard driver
alsa-lib-devel (rpm) - ALSA 库的静态库和头文件。
alsa-lib (rpm) - 高级 Linux 声音体系结构（ALSA）库。
alsamixer (1) - soundcard mixer for ALSA soundcard driver, with ncurses interface
alsa-utils (rpm) - 高级 Linux 声音体系结构（ALSA）工具。
alternatives (8) - maintain symbolic links determining default commands
amidi (1) - read from and write to ALSA RawMIDI ports
amixer (1) - command-line mixer for ALSA soundcard driver
anacron (8) - runs commands periodically
anacron (rpm) - 一个可以运行在机器停运期间丢失的作业的程序，类似 cron。
animate (1) - animates an image or image sequence on any X server
ant-antlr (rpm) - 关于 ant 的可选的 antlr 任务
ant-apache-bcel (rpm) - 为 ant 选择 apache 的 bcel 库任务
ant-apache-log4j (rpm) - ant 的可选 apache log4j 任务
ant-apache-oro (rpm) - ant 的可选 apache oro 任务
ant-apache-regexp (rpm) - ant 的可选择 apache regexp 任务
ant-apache-resolver (rpm) - ant 的可选择 apache resolver 任务
ant-commons-logging (rpm) - ant 的可选择通用日志任务
AntiVirus [Mail::SpamAssassin::Plugin::AntiVirus] (3pm) - simple anti-virus tests
ant-javadoc (rpm) - ant 的 Javadoc
ant-javamail (rpm) - ant 的可选 javamail 任务
ant-jdepend (rpm) - ant 的可选的 jdepend 任务
ant-jsch (rpm) - ant 的可选 jsch 任务
ant-junit (rpm) - ant 的可选 junit 任务
antlr-javadoc (rpm) - 用于 antlr 的 Javadoc
antlr-manual (rpm) - antlr 手册
antlr (rpm) - 另一个语言识别工具
ant-manual (rpm) - ant 手册
ant-nodeps (rpm) - ant 的可选任务
ant (rpm) - java 的 Ant 构建工具
ant-scripts (rpm) - ant 的附加脚本
ant-swing (rpm) - ant 的可选择 swing 任务
ant-trax (rpm) - ant 的可选择 trax 任务
AnyDBM_File (3pm) - provide framework for multiple DBMs
anytopnm (1) - convert an arbitrary type of image file to PBM, PGM, or PPM
aplay (1) - command-line sound recorder and player for ALSA soundcard driver
aplaymidi (1) - play Standard MIDI Files
apm (1) - interface with the APM subsystem
apm (4) - Alliance ProMotion video driver
apmd (8) - Advanced Power Management (APM) daemon
apmd (rpm) - 用于便携电脑的高级电源管理 (APM) BIOS 工具程序。
apmsleep (1) - go into suspend or standby mode and wake-up later
apropos (1) - search the whatis database for strings
apr (rpm) - 可移植的 Apache 运行时间库。
apr-util (rpm) - Apache 可移植运行时间库。
ar (1) - create, modify, and extract from archives
ar (1p) - create and maintain library archives
arch (1) - print machine architecture
Archive::Tar (3pm) - module for manipulations of tar archives
Archive::Tar::File (3pm) - a subclass for in-memory extracted file from Archive::Tar
arch_prctl (2) - set architecture specific thread state
arecord [aplay] (1) - command-line sound recorder and player for ALSA soundcard driver
arecordmidi (1) - record Standard MIDI Files
argz_add (3) - functions to handle an argz list
argz_add_sep [argz_add] (3) - functions to handle an argz list
argz_append [argz_add] (3) - functions to handle an argz list
argz_count [argz_add] (3) - functions to handle an argz list
argz_create [argz_add] (3) - functions to handle an argz list
argz_create_sep [argz_add] (3) - functions to handle an argz list
argz_delete [argz_add] (3) - functions to handle an argz list
argz_extract [argz_add] (3) - functions to handle an argz list
argz_insert [argz_add] (3) - functions to handle an argz list
argz_next [argz_add] (3) - functions to handle an argz list
argz_replace [argz_add] (3) - functions to handle an argz list
argz_stringify [argz_add] (3) - functions to handle an argz list
arp (7) - Linux ARP kernel module
arp (8) - manipulate the system ARP cache
arpa/inet.h [inet] (0p) - definitions for internet operations
arping (8) - send ARP REQUEST to a neighbour host
arts-devel (rpm) - 用于 aRts 声音服务器的开发文件
arts (rpm) - aRts (模拟实时合成器) - KDE声音系统
asa (1p) - interpret carriage-control characters
AS [as] (1) - the portable GNU assembler
ascii (7) - the ASCII character set encoded in octal, decimal, and hexadecimal
asciitopgm (1) - convert ASCII graphics into a PGM
ascii-xfr (1) - upload/download files using the ASCII protocol
asctime (3p) - convert date and time to a string
asctime [ctime] (3) - transform date and time to broken-down time or ASCII
asctime_r [asctime] (3p) - convert date and time to a string
asctime_r [ctime] (3) - transform date and time to broken-down time or ASCII
aseqdump (1) - show the events received at an ALSA sequencer port
aseqnet (1) - ALSA sequencer connectors over network
asin (3) - arc sine function
asin (3p) - arc sine function
asinf [asin] (3) - arc sine function
asinf [asin] (3p) - arc sine function
asinh (3) - inverse hyperbolic sine function
asinh (3p) - inverse hyperbolic sine functions
asinhf [asinh] (3) - inverse hyperbolic sine function
asinhf [asinh] (3p) - inverse hyperbolic sine functions
asinhl [asinh] (3) - inverse hyperbolic sine function
asinhl [asinh] (3p) - inverse hyperbolic sine functions
asinl [asin] (3) - arc sine function
asinl [asin] (3p) - arc sine function
ASN1_generate_nconf (3ssl) - ASN1 generation functions
ASN1_generate_v3 [ASN1_generate_nconf] (3ssl) - ASN1 generation functions
ASN1_OBJECT_free, [ASN1_OBJECT_new] (3ssl) - object allocation functions
ASN1_OBJECT_new (3ssl) - object allocation functions
asn1parse (1ssl) - ASN.1 parsing tool
ASN1_STRING_cmp [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_data [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_dup [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_free [ASN1_STRING_new] (3ssl) - ASN1_STRING allocation functions
ASN1_STRING_length (3ssl) - ASN1_STRING utility functions
ASN1_STRING_length_set [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_new (3ssl) - ASN1_STRING allocation functions
ASN1_STRING_print_ex (3ssl) - ASN1_STRING output routines
ASN1_STRING_print_ex_fp [ASN1_STRING_print_ex] (3ssl) - ASN1_STRING output routines
ASN1_STRING_set [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_type [ASN1_STRING_length] (3ssl) - ASN1_STRING utility functions
ASN1_STRING_type_new [ASN1_STRING_new] (3ssl) - ASN1_STRING allocation functions
aspell (1) - interactive spell checker
aspell-en (rpm) - 用于 Aspell 的英语词典。
aspell-import (1) - import old personal dictionaries into GNU Aspell
aspell (rpm) - 拼写检查器。
asprintf (3) - print to allocated string
assert (3) - abort the program if assertion is false
assert (3p) - insert program diagnostics
assert.h [assert] (0p) - verify program assertion
assert_perror (3) - test errnum and abort
assume_default_colors [default_colors] (3x) - use terminal's default colors
at (1p) - execute commands at a later time
at (1) - queue, examine or delete jobs for later execution
ata_id (8) - udev callout to read product/serial number from ATA drives
at.allow [at] (5) - determine who can submit jobs via at or batch
atan2 (3) - arc tangent function of two variables
atan2 (3p) - arc tangent functions
atan2f [atan2] (3) - arc tangent function of two variables
atan2f [atan2] (3p) - arc tangent functions
atan2l [atan2] (3) - arc tangent function of two variables
atan2l [atan2] (3p) - arc tangent functions
atan (3) - arc tangent function
atan (3p) - arc tangent function
atanf [atan] (3) - arc tangent function
atanf [atan] (3p) - arc tangent function
atanh (3) - inverse hyperbolic tangent function
atanh (3p) - inverse hyperbolic tangent functions
atanhf [atanh] (3) - inverse hyperbolic tangent function
atanhf [atanh] (3p) - inverse hyperbolic tangent functions
atanhl [atanh] (3) - inverse hyperbolic tangent function
atanhl [atanh] (3p) - inverse hyperbolic tangent functions
atanl [atan] (3) - arc tangent function
atanl [atan] (3p) - arc tangent function
atd (8) - run jobs queued for later execution
at.deny [at] (5) - determine who can submit jobs via at or batch
atexit (3p) - register a function to run at process termination
atexit (3) - register a function to be called at normal process termination
atk-devel (rpm) - 用于布局和绘制国际化文本的系统。
atk (rpm) - Interfaces for accessibility support
atktopbm (1) - convert Andrew Toolkit raster object to PBM
atof (3) - convert a string to a double
atof (3p) - convert a string to a double-precision number
atoi (3) - convert a string to an integer
atoi (3p) - convert a string to an integer
atol (3p) - convert a string to a long integer
atol [atoi] (3) - convert a string to an integer
atoll [atoi] (3) - convert a string to an integer
atoll [atol] (3p) - convert a string to a long integer
atoq [atoi] (3) - convert a string to an integer
atq [at] (1) - queue, examine or delete jobs for later execution
atrm [at] (1) - queue, examine or delete jobs for later execution
at (rpm) - 作业假脱机工具。
atrun (8) - run jobs queued for later execution
at-spi-devel (rpm) - 用于 at-spi 的开发库和头文件
at-spi (rpm) - 协助性技术服务提供者界面
attr (1) - extended attributes on XFS filesystem objects
attr (5) - Extended attributes
attr_get (3) - get the value of a user attribute of a filesystem object
attr_get [curs_attr] (3x) - curses character and window attribute control routines
attr_getf [attr_get] (3) - get the value of a user attribute of a filesystem object
Attribute::Handlers (3pm) - Simpler definition of attribute handlers
attributes (3pm) - get/set subroutine or variable attributes
attr_list (3) - list the names of the user attributes of a filesystem object
attr_listf [attr_list] (3) - list the names of the user attributes of a filesystem object
attr_multi (3) - manipulate multiple user attributes on a filesystem object at once
attr_multif [attr_multi] (3) - manipulate multiple user attributes on a filesystem object at once
attr_off [curs_attr] (3x) - curses character and window attribute control routines
attroff [curs_attr] (3x) - curses character and window attribute control routines
attr_on [curs_attr] (3x) - curses character and window attribute control routines
attron [curs_attr] (3x) - curses character and window attribute control routines
attr_remove (3) - remove a user attribute of a filesystem object
attr_removef [attr_remove] (3) - remove a user attribute of a filesystem object
attr (rpm) - 管理文件系统的扩展属性的工具程序。
attrs (3pm) - set/get attributes of a subroutine (deprecated)
attr_set (3) - set the value of a user attribute of a filesystem object
attr_set [curs_attr] (3x) - curses character and window attribute control routines
attrset [curs_attr] (3x) - curses character and window attribute control routines
attr_setf [attr_set] (3) - set the value of a user attribute of a filesystem object
audiofile-devel (rpm) - 用于音频文件程序的开发文件.
audiofile (rpm) - 用于访问各种音频文件格式的库。
audit2allow (1) - generate policy allow rules from logs of denied operations
audit2why (8) - Translates SELinux audit messages into a description of why the access was denied
audit-libs-python (rpm) - Python bindings for libaudit
audit-libs (rpm) - libaudit 的动态库
authconfig (8) - tui - an interface for configuring system authentication resources
authconfig-gtk (rpm) - Graphical tool for setting up authentication from network services
authconfig (rpm) - Command line tool for setting up authentication from network services
autoconf (1) - Generate configuration scripts
autoconf (rpm) - 用来自动配置源码的 GNU 工具。
autofs (5) - Format of the automounter maps
autofs (rpm) - 自动挂载和卸载文件系统的工具。
autoheader (1) - Create a template header for configure
AutoLoader (3pm) - load subroutines only on demand
autom4te (1) - Generate files and scripts thanks to M4
automake14 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake15 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake16 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake17 (rpm) - 自动创建 Makefiles 的 GNU 工具。
automake (rpm) - 自动创建 Makefiles 的 GNU 工具。
auto.master [auto] (5) - Master Map for automounter
automount (8) - manage autofs mount points
autoreconf (1) - Update generated configuration files
autorun (1) - automatically mounts/unmounts CDROMs and executes /path_to_cdrom/autorun after mounting
autorun (rpm) - 一个挂载光盘的工具。
autoscan (1) - Generate a preliminary configure.in
AutoSplit (3pm) - split a package for autoloading
autoupdate (1) - Update a configure.in to a newer Autoconf
autouse (3pm) - postpone load of modules until a function is used
autovbox (1) - ISDN voice box (sound converter)
avahi-daemon (8) - The Avahi mDNS/DNS-SD daemon
avahi-daemon.conf [avahi-daemon] (5) - avahi-daemon configuration file
avahi-devel (rpm) - Libraries and header files for avahi development
avahi-dnsconfd (8) - Unicast DNS server from mDNS/DNS-SD configuration daemon
avahi-dnsconfd.action [avahi-dnsconfd] (8) - avahi-dnsconfd action script
avahi-glib (rpm) - Glib libraries for avahi
avahi.hosts [avahi] (5) - avahi - daemon static host name file
avahi-qt3 (rpm) - Qt3 libraries for avahi
avahi (rpm) - Local network service discovery
avahi.service [avahi] (5) - avahi - daemon static service file
avalon-framework-javadoc (rpm) - avalon-framework 是 Javadoc 文档
avalon-framework-manual (rpm) - avalon-结构手册
avalon-framework (rpm) - 使用 Java 编辑的界面
avalon-logkit-javadoc (rpm) - avalon-logkit 的 Javadoc 文档
avalon-logkit (rpm) - Java 日志工具套件
avc_add_callback (3) - additional event notification for userspace object managers
avc_audit [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_av_stats [avc_cache_stats] (3) - obtain userspace AVC statistics
avc_cache_stats (3) - obtain userspace AVC statistics
avc_cleanup [avc_init] (3) - userspace AVC setup and teardown
avc_context_to_sid (3) - obtain and manipulate security ID's
avc_destroy [avc_init] (3) - userspace AVC setup and teardown
avc_entry_ref_init [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_has_perm (3) - obtain and audit SELinux access decisions
avc_has_perm_noaudit [avc_has_perm] (3) - obtain and audit SELinux access decisions
avc_init (3) - userspace AVC setup and teardown
avc_reset [avc_init] (3) - userspace AVC setup and teardown
avc_sid_stats [avc_cache_stats] (3) - obtain userspace AVC statistics
avc_sid_to_context [avc_context_to_sid] (3) - obtain and manipulate security ID's
avcstat (8) - Display SELinux AVC statistics
avctrl (8) - Bluetooth Audio/Video control utility
avmcapictrl (8) - Add, reset or remove active AVM cards and load firmware
awk (1p) - pattern scanning and processing language
axis (rpm) - Java 中的一个 SOAP 实现
