dcb5ea0b2f
git-svn-id: svn+ssh://atelier.inf.usi.ch/home/bevilj/group-1@86 a672b425-5310-4d7a-af5c-997e18724b81
56 lines
2.6 KiB
HTML
56 lines
2.6 KiB
HTML
---
|
|
layout: page
|
|
category-page: fs
|
|
category-title: FileSystem
|
|
tags: directory list remove delete erase
|
|
author: Mattia Hijman
|
|
title: rm
|
|
---
|
|
|
|
<p>The <code>rm</code> command is used to delete and unlink directories and files.<br>
|
|
It attempts to remove the non-directory type files specified on the command line.
|
|
If the permissions of the file do not permit writing, the user is prompted for confirmation.<br>
|
|
It stands for <i>ReMove</i>.
|
|
|
|
<pre>
|
|
rm [-dfiPRrvW] file1 file2 file....
|
|
</pre>
|
|
|
|
<h2>Flags</h2>
|
|
<ul>
|
|
<li> <b>-d</b>: Attempt to remove directories as well as other types of files</li>
|
|
<li> <b>-f</b>: Attempt to remove the files without prompting for confirmation, regardless
|
|
of the file's permissions. If the file does not exist, do not display a diagnostic message
|
|
or modify the exit status to reflect an error.</li>
|
|
<li> <b>-i</b>: Request confirmation before attempting to remove each file,
|
|
regardless of the file's permissions, or whether or not the standard input device
|
|
is a terminal.</li>
|
|
<li> <b>-P</b>: Overwrite regular files before deleting them. Files are overwritten
|
|
three times, first with the byte pattern 0xff, then 0x00, and then 0xff again, before
|
|
they are deleted.</li>
|
|
<li> <b>-R</b>: Attempt to remove the file hierarchy rooted in each file argument.
|
|
The -R option implies the -d option.
|
|
If the -i option is specified, the user is prompted for confirmation before
|
|
each directory's contents are processed (as well as before the attempt is
|
|
made to remove the directory).
|
|
If the user does not respond affirmatively, the file hierarchy rooted in that
|
|
directory is skipped.</li>
|
|
<li> <b>-r</b>: Same as -R.</li>
|
|
<li> <b>-v</b>: Be verbose when deleting files, showing them as they are removed.</li>
|
|
<li> <b>-W</b>: Attempt to undelete the named files.
|
|
Currently, this option can only be used to recover files covered by whiteouts.</li>
|
|
</ul>
|
|
|
|
<h2>Removing links</h2>
|
|
|
|
The rm utility removes symbolic links, not the files referenced by the links.<br>
|
|
It is not allowed to remove the files "." or "..".<br>
|
|
|
|
When the utility is called as unlink, only one argument, which must not be a directory,
|
|
may be supplied. No options may be supplied in this simple mode of operation,
|
|
which performs an unlink(2) operation on the passed argument.<br>
|
|
|
|
The rm utility exits 0 if all of the named files or file hierarchies were removed,
|
|
or if the -f option was specified and all of the existing files or file hierarchies were removed.
|
|
If an error occurs, rm exits with a value 0.
|