rename − renames multiple files

rename [ −h|−m|−V ] [ −v ] [ −0 ] [ −n ] [ −f ] [ −d ]
[ −e|−E perlexpr]*|perlexpr [ files ]

"rename" renames the filenames supplied according to the
rule specified as the first argument.  The perlexpr argument
is a Perl expression which is expected to modify the $_
string in Perl for at least some of the filenames specified.
If a given filename is not modified by the expression, it
will not be renamed.  If no filenames are given on the
command line, filenames will be read via standard input.

     For example, to rename all files matching "*.bak" to
strip the extension, you might say

             rename 's/\.bak$//' *.bak

     To translate uppercase names to lower, you’d use

             rename 'y/A−Z/a−z/' *

−v, −−verbose
        Verbose: print names of files successfully renamed.

−0, −−null
        Use \0 as record separator when reading from STDIN.

−n, −−nono
        No action: print names of files to be renamed, but
        don’t rename.

−f, −−force
        Over write: allow existing files to be over‐written.

−−path, −−fullpath
        Rename full path: including any directory component.

−d, −−filename, −−nopath, −−nofullpath
        Do not rename directory: only rename filename
        component of path.

−h, −−help
        Help: print SYNOPSIS and OPTIONS.

−m, −−man
        Manual: print manual page.

−V, −−version
        Version: show version number.


−e      Expression: code to act on files name.

        May be repeated to build up code (like "perl −e").
        If no −e, the first argument is used as code.

−E      Statement: code to act on files name, as −e but
        terminated by ’;’.

No environment variables are used.

Larry Wall

mv(1), perl(1)

If you give an invalid Perl expression you’ll get a syntax

The original "rename" did not check for the existence of
target filenames, so had to be used with care.