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6ce6b6c1d4
symbolic link to a directory for the target as a symbolic link instead of a directory. This makes it possible to atomically update a symbolic link using rename(). Reviewed by: gj MFC after: 2 weeks
180 lines
4.2 KiB
Groff
180 lines
4.2 KiB
Groff
.\"-
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.\" Copyright (c) 1989, 1990, 1993
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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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.\" 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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.\" @(#)mv.1 8.1 (Berkeley) 5/31/93
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.\" $FreeBSD$
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.\"
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.Dd August 28, 2012
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.Dt MV 1
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.Os
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.Sh NAME
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.Nm mv
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.Nd move files
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.Sh SYNOPSIS
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.Nm
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.Op Fl f | i | n
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.Op Fl hv
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.Ar source target
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.Nm
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.Op Fl f | i | n
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.Op Fl v
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.Ar source ... directory
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.Sh DESCRIPTION
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In its first form, the
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.Nm
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utility renames the file named by the
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.Ar source
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operand to the destination path named by the
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.Ar target
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operand.
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This form is assumed when the last operand does not name an already
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existing directory.
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.Pp
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In its second form,
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.Nm
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moves each file named by a
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.Ar source
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operand to a destination file in the existing directory named by the
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.Ar directory
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operand.
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The destination path for each operand is the pathname produced by the
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concatenation of the last operand, a slash, and the final pathname
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component of the named file.
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl f
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Do not prompt for confirmation before overwriting the destination
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path.
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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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or
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.Fl n
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options.)
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.It Fl h
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If the
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.Ar target
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operand is a symbolic link to a directory,
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do not follow it.
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This causes the
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.Nm
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utility to rename the file
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.Ar source
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to the destination path
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.Ar target
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rather than moving
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.Ar source
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into the directory referenced by
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.Ar target .
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.It Fl i
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Cause
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.Nm
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to write a prompt to standard error before moving a file that would
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overwrite an existing file.
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If the response from the standard input begins with the character
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.Ql y
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or
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.Ql Y ,
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the move is attempted.
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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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or
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.Fl n
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options.)
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.It Fl n
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Do not overwrite an existing file.
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(The
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.Fl n
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option overrides any previous
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.Fl f
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or
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.Fl i
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options.)
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.It Fl v
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Cause
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.Nm
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to be verbose, showing files after they are moved.
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.El
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.Pp
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It is an error for the
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.Ar source
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operand to specify a directory if the target exists and is not a directory.
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.Pp
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If the destination path does not have a mode which permits writing,
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.Nm
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prompts the user for confirmation as specified for the
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.Fl i
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option.
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.Pp
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As the
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.Xr rename 2
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call does not work across file systems,
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.Nm
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uses
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.Xr cp 1
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and
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.Xr rm 1
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to accomplish the move.
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The effect is equivalent to:
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.Bd -literal -offset indent
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rm -f destination_path && \e
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cp -pRP source_file destination && \e
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rm -rf source_file
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.Ed
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.Sh EXIT STATUS
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.Ex -std
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.Sh COMPATIBILITY
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The
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.Fl h ,
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.Fl n ,
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and
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.Fl v
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options are non-standard and their use in scripts is not recommended.
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.Sh SEE ALSO
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.Xr cp 1 ,
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.Xr rm 1 ,
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.Xr symlink 7
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.Sh STANDARDS
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The
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.Nm
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utility 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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