Linux 常用命令3-- 目录操作rmdir 和 rm

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 --helpUsage: rmdir [OPTION]... DIRECTORY...Remove the DIRECTORY(ies), if they are empty.      --ignore-fail-on-non-empty                  ignore each failure that is solely because a directory                    is non-empty  -p, --parents   remove DIRECTORY and its ancestors; e.g., `rmdir -p a/b/c' is                    similar 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 --helpUsage: 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, or                          when removing recursively.  Less intrusive than -i,                          while still giving protection against most mistakes      --interactive[=WHEN]  prompt according to WHEN: never, once (-I), or                          always (-i).  Without WHEN, prompt always      --one-file-system  when removing a hierarchy recursively, skip any                          directory that is on a file system different from                          that 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 -- -foo  rm ./-fooNote that if you use rm to remove a file, it is usually possible to recoverthe contents of that file.  If you want more assurance that the contents aretruly unrecoverable, consider using shred.