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1130b656e5
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
184 lines
5.2 KiB
Groff
184 lines
5.2 KiB
Groff
.\" Copyright (c) 1990, 1993, 1994
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Institute of Electrical and Electronics Engineers, Inc.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)rm.1 8.5 (Berkeley) 12/5/94
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.\" $FreeBSD$
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.\"
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.Dd December 5, 1994
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.Dt RM 1
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.Os
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.Sh NAME
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.Nm rm
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.Nd remove directory entries
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.Sh SYNOPSIS
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.Nm rm
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.Op Fl f | Fl i
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.Op Fl dPRrW
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.Ar file ...
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.Sh DESCRIPTION
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The
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.Nm rm
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utility attempts to remove the non-directory type files specified on the
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command line.
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If the permissions of the file do not permit writing, and the standard
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input device is a terminal, the user is prompted (on the standard error
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output) for confirmation.
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.Pp
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The options are as follows:
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.Bl -tag -width flag
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.It Fl d
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Attempt to remove directories as well as other types of files.
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.It Fl f
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Attempt to remove the files without prompting for confirmation,
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regardless of the file's permissions.
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If the file does not exist, do not display a diagnostic message or modify
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the exit status to reflect an error.
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The
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.Fl f
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option overrides any previous
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.Fl i
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options.
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.It Fl i
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Request confirmation before attempting to remove each file, regardless of
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the file's permissions, or whether or not the standard input device is a
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terminal.
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The
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.Fl i
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option overrides any previous
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.Fl f
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options.
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.It Fl P
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Overwrite regular files before deleting them.
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Files are overwritten three times, first with the byte pattern 0xff,
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then 0x00, and then 0xff again, before they are deleted.
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.It Fl R
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Attempt to remove the file hierarchy rooted in each file argument.
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The
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.Fl R
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option implies the
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.Fl d
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option.
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If the
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.Fl i
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option is specified, the user is prompted for confirmation before
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each directory's contents are processed (as well as before the attempt
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is made to remove the directory).
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If the user does not respond affirmatively, the file hierarchy rooted in
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that directory is skipped.
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.Pp
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.It Fl r
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Equivalent to
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.Fl R .
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.It Fl W
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Attempts to undelete the named files.
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Currently, this option can only be used to recover
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files covered by whiteouts. (UNIMPLEMENTED)
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.El
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.Pp
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The
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.Nm rm
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utility removes symbolic links, not the files referenced by the links.
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.Pp
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It is an error to attempt to remove the files ``.'' and ``..''.
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.Pp
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The
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.Nm rm
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utility exits 0 if all of the named files or file hierarchies were removed,
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or if the
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.Fl f
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option was specified and all of the existing files or file hierarchies were
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removed.
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If an error occurs,
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.Nm rm
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exits with a value >0.
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.Sh NOTE
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.Nm rm
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use
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.Xr getopt 3
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parsing routine. Getopt accept a
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.Sq Li --
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argument, which stop reading options, anything after this
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is not an option.
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So
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.Nm rm
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handle files whose names begins with a
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.Sq Li - .
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Example:
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``$ rm -- -filename''.
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.Sh SEE ALSO
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.Xr rmdir 1 ,
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.Xr undelete 2 ,
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.Xr unlink 2 ,
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.Xr fts 3 ,
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.Xr getopt 3 ,
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.Xr symlink 7
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.Sh BUGS
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The
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.Fl P
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option assumes that the underlying file system is a fixed-block file
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system.
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UFS is a fixed-block file system, LFS is not.
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In addition, only regular files are overwritten, other types of files
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are not.
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.Pp
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No support exists for the
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.Xr undelete 2
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call in the kernel, so the
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.Fl W
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option is not yet implemented.
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.Sh COMPATIBILITY
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The
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.Nm rm
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utility differs from historical implementations in that the
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.Fl f
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option only masks attempts to remove non-existent files instead of
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masking a large variety of errors.
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.Pp
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Also, historical
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.Bx
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implementations prompted on the standard output,
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not the standard error output.
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.Sh STANDARDS
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The
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.Nm rm
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command is expected to be
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.St -p1003.2
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compatible.
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.Sh HISTORY
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A
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.Nm
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command appeared in
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.At v1 .
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