NAME [Toc] [Back]
mv - move or rename files and directories
SYNOPSIS [Toc] [Back]
mv [-f|-i] [-e extarg] file1 new-file
mv [-f|-i] [-e extarg] file1 [file2 ...] dest-directory
mv [-f|-i] [-e extarg] directory1 [directory2 ...] dest-directory
DESCRIPTION [Toc] [Back]
The mv command moves:
+ One file (file1) to a new or existing file (new-file).
+ One or more files (file1, [file2, ...]) to an existing
+ One or more directory subtrees (directory1, [directory2, ...])
to a new or existing directory (dest-directory).
Moving file1 to new-file is used to rename a file within a directory
or to relocate a file within a file system or across different file
systems. When the destination is a directory, one or more files are
moved into that directory. If two or more files are moved, the
destination must be a directory. When moving a single file to a new
file, if new-file exists, its contents are destroyed.
If the access permissions of the destination dest-directory or
existing destination file new-file forbid writing, mv asks permission
to overwrite the file. This is done by printing the mode (see
chmod(2) and Access Control Lists below), followed by the first
letters of the words yes and no in the language of the current locale,
prompting for a response, and reading one line from the standard
input. If the response is affirmative and the action is permissible,
the operation occurs; if not, the command proceeds to the next source
file, if any.
If file1 is a file and new-file is a link to another file with other
links, the other links remain and new-file becomes a new file. If
file1 is a file with links or a link to a file, the existing file or
link remains intact, but the name is changed to new-file which may or
may not be in the directory where file1 resided, depending on
directory path names used in the mv command. The last access and
modification times of the file or files being moved remain unchanged.
Options [Toc] [Back]
mv recognizes the following options:
-f Perform mv commands without prompting for
permission. This option is assumed when the
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standard input is not a terminal.
-i Causes mv to write a prompt to standard output
before moving a file that would overwrite an
existing file. If the response from the standard
input is affirmative, the file is moved if
permissions allow the move.
-e extarg Specifies the handling of any extent attributes of
the files(s) to be moved. extarg can be one of
the following values:
warn Issue a warning message if extent
attributes cannot be preserved, but
move the file anyway.
ignore Do not preserve extent attributes.
force Do not move the file if the extent
attributes cannot be preserved.
If multiple source files are specified
with a single target directory, mv
will move the files that either do not
have extent attributes or that have
extent attributes that can be
preserved. mv will not move the files
if it cannot preserve their extent
Extent attributes cannot be preserved if the files
are being moved to a file system that does not
support extent attributes or if that file system
has a different block size than the original. If
-e is not specified, the default value for extarg
Access Control Lists (ACLs) [Toc] [Back]
If optional ACL entries are associated with new-file, mv displays a
plus sign (+) after the access mode when asking permission to
overwrite the file.
If new-file is a new file, it inherits the access control list of
file1, altered to reflect any difference in ownership between the two
files (see acl(5) and aclv(5)). In JFS file systems, new files
created by mv do not inherit their parent directory's default ACL
entries (if any), but instead retain their original ACLs. When moving
files from a JFS file system to an HFS file system or vice versa,
optional ACL entries are lost.
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EXTERNAL INFLUENCES [Toc] [Back]
LC_CTYPE determines the interpretation of text as single byte and/or
LANG and LC_CTYPE determine the local language equivalent of y (for
LANG determines the language in which messages are displayed.
If LC_CTYPE is not specified in the environment or is set to the empty
string, the value of LANG is used as a default for each unspecified or
empty variable. If LANG is not specified or is set to the empty
string, a default of C (see lang(5)) is used instead of LANG. If any
internationalization variable contains an invalid setting, mv behaves
as if all internationalization variables are set to C. See
International Code Set Support [Toc] [Back]
Single character and multibyte character code sets are supported.
EXAMPLES [Toc] [Back]
Rename a file in the current directory:
mv old-filename new-filename
Rename a directory in the current directory:
mv old-dirname new-dirname
Rename a file in the current directory whose name starts with a
nonprinting control character or a character that is special to the
shell, such as - and * (extra care may be required depending on the
mv ./bad-filename new-filename
mv ./?bad-filename new-filename
mv ./*bad-filename new-filename
Move directory sourcedir and its contents to a new location
(targetdir) in the file system (upon completion, a subdirectory named
sourcedir resides in directory targetdir):
mv sourcedir targetdir
Move all files and directories (including links) in the current
directory to a new location underneath targetdir:
mv * targetdir
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Move all files and directories (including links) in sourcedir to a new
location underneath targetdir (sourcedir and targetdir are in separate
mv sourcedir/* targetdir
WARNINGS [Toc] [Back]
If file1 and new-file exist on different file systems, mv copies the
file and deletes the original. In this case the mover becomes the
owner and any linking relationship with other files is lost. mv
cannot carry hard links across file systems. If file1 is a directory,
mv copies the entire directory structure onto the destination file
system and deletes the original.
mv cannot be used to perform the following operations:
+ Rename either the current working directory or its parent
directory using the . or .. notation.
+ Rename a directory to a new name identical to the name of a
file contained in the same parent directory.
DEPENDENCIES [Toc] [Back]
Access control lists of networked files are summarized (as returned in
st_mode by stat(2)), but not copied to the new file. When using mv on
such files, a + is not printed after the mode value when asking for
permission to overwrite a file.
AUTHOR [Toc] [Back]
mv was developed by AT&T, the University of California, Berkeley and
SEE ALSO [Toc] [Back]
cp(1), cpio(1), ln(1), rm(1), link(1M), lstat(2), readlink(2),
stat(2), symlink(2), symlink(4), acl(5), aclv(5).
STANDARDS CONFORMANCE [Toc] [Back]
mv: SVID2, SVID3, XPG2, XPG3, XPG4, POSIX.2
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