Linux yum 命令

yum常用命令

• 1. 列出所有可更新的软件清单命令：yum check-update

• 2. 更新所有软件命令：yum update

• 3. 仅安装指定的软件命令：yum install <package_name>

• 4. 仅更新指定的软件命令：yum update <package_name>

• 5. 列出所有可安裝的软件清单命令：yum list

• 6. 删除软件包命令：yum remove <package_name>

• 7. 查找软件包命令：yum search <keyword>

• 8. 清除缓存命令:

  • yum clean packages: 清除缓存目录下的软件包
  • yum clean headers: 清除缓存目录下的 headers
  • yum clean oldheaders: 清除缓存目录下旧的 headers
  • yum clean, yum clean all (= yum clean packages; yum clean oldheaders) :清除缓存目录下的软件包及旧的 headers

安装 pam-devel

[root@www ~]# yum install pam-devel
Setting up Install Process
Parsing package install arguments
Resolving Dependencies  <==先检查软件的属性相依问题
--> Running transaction check
---> Package pam-devel.i386 0:0.99.6.2-4.el5 set to be updated
--> Processing Dependency: pam = 0.99.6.2-4.el5 for package: pam-devel
--> Running transaction check
---> Package pam.i386 0:0.99.6.2-4.el5 set to be updated
filelists.xml.gz          100% |=========================| 1.6 MB    00:05
filelists.xml.gz          100% |=========================| 138 kB    00:00
-> Finished Dependency Resolution
……(省略)

利用 yum 的功能，找出以 pam 为开头的软件名称有哪些？

[root@www ~]# yum list pam*
Installed Packages
pam.i386                  0.99.6.2-3.27.el5      installed
pam_ccreds.i386           3-5                    installed
pam_krb5.i386             2.2.14-1               installed
pam_passwdqc.i386         1.0.2-1.2.2            installed
pam_pkcs11.i386           0.5.3-23               installed
pam_smb.i386              1.1.7-7.2.1            installed
Available Packages <==底下则是『可升级』的或『未安装』的
pam.i386                  0.99.6.2-4.el5         base
pam-devel.i386            0.99.6.2-4.el5         base
pam_krb5.i386             2.2.14-10              base