Linux基础——wipefs磁盘数据擦除工具

 

一、概述

[root@harbor yum.repos.d]# wipefs --help

Usage:
 wipefs [options] <device>

Wipe signatures from a device.

Options:
 -a, --all           wipe all magic strings (BE CAREFUL!)
 -b, --backup        create a signature backup in $HOME
 -f, --force         force erasure
 -i, --noheadings    don't print headings
 -J, --json          use JSON output format
 -n, --no-act        do everything except the actual write() call
 -o, --offset <num>  offset to erase, in bytes
 -O, --output <list> COLUMNS to display (see below)
 -p, --parsable      print out in parsable instead of printable format
 -q, --quiet         suppress output messages
 -t, --types <list>  limit the set of filesystem, RAIDs or partition tables
 -h, --help          display this help
 -V, --version       display version

Available output columns:
     UUID  partition/filesystem UUID
    LABEL  filesystem LABEL
   LENGTH  magic string length
     TYPE  superblok type
   OFFSET  magic string offset
    USAGE  type description
   DEVICE  block device name

For more details see wipefs(8).

二、范例

wipefs
Wipe filesystem, raid, or partition-table signatures from a device.

Display signatures for specified device:
sudo wipefs {{/dev/sdX}}

Wipe all available signatures for specified device:
sudo wipefs --all {{/dev/sdX}}

Perform dry run:
sudo wipefs --all --no-act {{/dev/sdX}}

Force wipe, even if the filesystem is mounted:
sudo wipefs --all --force {{/dev/sdX}}

 

 

参考

https://www.cnblogs.com/cainiaoyige1/p/14675392.html
https://www.man7.org/linux/man-pages/man8/wipefs.8.html
指令查看网站
https://www.linux-man.cn/command/?command=ps