Linux 常用命令3-- 目录操作rmdir 和 rm

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rmdir 删除文件或目录 全称: Remove Directory
使用方式 : rmdir [-p] 目录名称
参数：
-p:递归的删除目录(目录必须为空)

[root@localhost mail]# rmdir --help
Usage: rmdir [OPTION]... DIRECTORY...
Remove the DIRECTORY(ies), if they are empty.--ignore-fail-on-non-emptyignore each failure that is solely because a directoryis non-empty-p, --parents   remove DIRECTORY and its ancestors; e.g., `rmdir -p a/b/c' issimilar to `rmdir a/b/c a/b a'-v, --verbose   output a diagnostic for every directory processed--help     display this help and exit--version  output version information and exit

rm 删除文件或目录 全称: Remove
使用方式 : rm [-pr] 目录名称
参数：
-f:忽略不存在的文件，不出先警告信息
-i:互动模式，在删除前询问是否操作
-r:递归删除，常用在目录删除，相当危险

[root@localhost mail]# rm --help
Usage: rm [OPTION]... FILE...
Remove (unlink) the FILE(s).-f, --force           ignore nonexistent files, never prompt-i                    prompt before every removal-I                    prompt once before removing more than three files, orwhen removing recursively.  Less intrusive than -i,while still giving protection against most mistakes--interactive[=WHEN]  prompt according to WHEN: never, once (-I), oralways (-i).  Without WHEN, prompt always--one-file-system  when removing a hierarchy recursively, skip anydirectory that is on a file system different fromthat of the corresponding command line argument--no-preserve-root  do not treat `/' specially--preserve-root   do not remove `/' (default)-r, -R, --recursive   remove directories and their contents recursively-v, --verbose         explain what is being done--help     display this help and exit--version  output version information and exitBy default, rm does not remove directories.  Use the --recursive (-r or -R)
option to remove each listed directory, too, along with all of its contents.To remove a file whose name starts with a `-', for example `-foo',
use one of these commands:rm -- -foorm ./-fooNote that if you use rm to remove a file, it is usually possible to recover
the contents of that file.  If you want more assurance that the contents are
truly unrecoverable, consider using shred.

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