We’re all familiar with
mv command for simple renaming or moving of files in bash.
I recently however needed to change extension for multiple files; for such task
one of the easiest commands is
rename, let’s see some examples from the manual:
rename [options] expression replacement file/filter
Given the files foo1, …, foo9, foo10, …, foo278, the commands:
$ rename foo foo0 foo? $ rename foo foo0 foo??
will turn them into foo001, …, foo009, foo010, …, foo278. And
$ rename .htm .html *.htm
will fix the extension of your html files.
You should also check
mmv which can be used for bulk renaming and/or moving.