命令簡介：

該命令用來刪除Linux系統中的文件或目錄。通常情況下rm不會刪除目錄，你必須通過指定參數-r或-R來刪除目錄。另外rm通常可以將該文件或目錄恢復（注意，rm刪除文件其實只是將指向數據塊的索引點（information nodes）釋放，只要不被覆蓋，數據其實還在硬盤上。如果想要保證文件的內容無法復原，可以使用命令shred 。 另外一般還是要慎用rm -rf *這樣的命令。

執行權限 ：All User

指令所在路徑：/bin/rm

命令語法：

rm [OPTION]... FILE...

命令參數：

使用示例：

1：查看獲取rm命令的幫助信息。

[root@DB-Server kerry]# man rm

RM(1)                            User Commands                           RM(1)

NAME

       rm - remove files or directories

SYNOPSIS

       rm [OPTION]... FILE...

DESCRipTION

       This manual page documents the GNU version of rm.  rm removes each specified file.  By default, it does not remove directories.

       If  a  file is unwritable, the standard input is a tty, and the -f or --force option is not given, rm PRompts the user for whether to remove the file.  If

       the response is not affirmative, the file is skipped.

OPTIONS

       Remove (unlink) the FILE(s).

       -f, --force

              ignore nonexistent files, never prompt

       -i, --interactive

              prompt before any removal

       --no-preserve-root do not treat 鈥?鈥?specially (the default)

       --preserve-root

              fail to Operate recursively on 鈥?鈥?

       -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 exit

       By 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 鈥?鈥? for example 鈥?foo鈥? use one of these commands:

              rm -- -foo

              rm ./-foo

       Note 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.

AUTHOR

       Written by Paul Rubin, David MacKenzie, Richard Stallman, and Jim Meyering.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright 漏 2006 Free Software Foundation, Inc.

       This is free software.  You may redistribute copies of it under the terms of the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.  There

       is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       chattr(1), shred(1)

       The full documentation for rm is maintained as a Texinfo manual.  If the info and rm programs are properly installed at your site, the command