rename - renames multiple files
rename [ -v ] [ -n ] [ -f ] perlexpr [ files ]
renames the filenames supplied according to the rule specified as the
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
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/' *
No environment variables are used.
If you give an invalid Perl expression you'll get a syntax error.
rename did not check for the existence of target filenames,
so had to be used with care. I hope I've fixed that (Robin Barker).