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 the -I or --interactive=once option is given, and there are more
than three files or the -r, -R, or --recursive are given, then rm
prompts the user for whether to proceed with the entire operation. If
the response is not affirmative, the entire command is aborted.
Otherwise, if a file is unwritable, standard input is a terminal, and
the -f or --force option is not given, or the -i or --interac‐
tive=always option is 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 and arguments, never prompt
#不进行询问（默认），强制删除
-i prompt before every removal
#删除之前进行询问，每删一个文件询问一次
-I prompt once before removing more than three files, or when
removing recursively. Less intrusive than -i, while still giv‐
ing protection against most mistakes
#当删除文件超过三个以上时进行询问
--interactive[=WHEN]
prompt according to WHEN: never, once (-I), or always (-i).
Without WHEN, prompt always
#是否进行询问，一次或者每次
***********************************************************************************************************
-r, -R, --recursive
remove directories and their contents recursively
-d, --dir
remove empty directories
-v, --verbose
explain what is being done
*************************************************************************************************************
--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
#跳过其他文件系统，对于多文件系统有重要的作用
--no-preserve-root
do not treat ‘/‘ specially
--preserve-root
do not remove ‘/‘ (default)
--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 ‘-‘, for example ‘-foo‘, use
one of these commands:
rm -- -foo
rm ./-foo #删除开头为 “-” 文件 =_+
Note that if you use rm to remove a file, it might be possible to
recover some of its contents, given sufficient expertise and/or time.
For greater assurance that the contents are truly unrecoverable, con‐
sider using shred.
AUTHOR
Written by Paul Rubin, David MacKenzie, Richard M. Stallman, and Jim
Meyering.
REPORTING BUGS
Report rm bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report rm translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright © 2013 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
unlink(1), unlink(2), 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 com‐
mand
info coreutils ‘rm invocation‘
should give you access to the complete manual.
GNU coreutils 8.21 March 2014 RM(1)
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RMDIR(1) User Commands RMDIR(1)
NAME
rmdir - remove empty directories #单独拿出来删除一个空目录
SYNOPSIS
rmdir [OPTION]... DIRECTORY...
DESCRIPTION
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‘
#连带删除父目录
-v, --verbose
output a diagnostic for every directory processed
--help display this help and exit
--version
output version information and exit
AUTHOR
Written by David MacKenzie.
REPORTING BUGS
Report rmdir bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report rmdir translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright © 2013 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
rmdir(2)
The full documentation for rmdir is maintained as a Texinfo manual. If
the info and rmdir programs are properly installed at your site, the
command
info coreutils ‘rmdir invocation‘
should give you access to the complete manual.
GNU coreutils 8.21 March 2014 RMDIR(1)
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1 #rm -d target.d 2 #rmdir target.d 3 4 以上均只适用于来删除空目录
原文：http://www.cnblogs.com/IceSword-syy/p/3946919.html