Rename files using regular expression in linux

Question

I have a set of files named like:

Friends - 6x03 - Tow Ross\' Denial.srt
Friends - 6x20 - Tow Mac and C.H.E.E.S.E..s         


        

Answer 1

You can use rnm:

rnm -rs '/\w+\s*-\s*(\d)x(\d+).*$/S0\1E\2.srt/' *.srt

Explanation:

1. -rs : replace string of the form /search_regex/replace_part/modifier
2. (\d) and (\d+) in (\d)x(\d+) are two captured groupes (\1 and \2 respectively).

More examples here.