will rename the specified files by replacing the first occurrence of
in their name by
Give visual feedback which files where renamed, if any.
Display version information and exit.
Display help text and exit.
Given the files
foo1, ..., foo9, foo10, ..., foo278,
rename foo foo0 foo?
rename foo foo0 foo??
will turn them into
foo001, ..., foo009, foo010, ..., foo278.
rename .htm .html *.htm
will fix the extension of your html files.
The renaming has no safeguards. If the user has permission to rewrite file names,
the command will perform the action without any questions. For example, the
result can be quite drastic when the command is run as root in the /lib
directory. Always make a backup before running the command, unless you truly
know what you are doing.