changing file extensions using sed command in linux

Question

I wanted to change all of the files extensions in a folder to .jpg using only sed command.

I tried using

sed -i 's/\.*/\.jpg/g' ~/cw/

cw is my folder where i have files like:

etc.

Does this answer your question? [Using sed to mass rename files](https://stackoverflow.com/questions/2372719/using-sed-to-mass-rename-files) — Maroun, Apr 06 '22 at 14:20
not really, I wanted to change .jpeg, .JPG and not the names of the files — wyntia, Apr 06 '22 at 14:32

score 1 · Accepted Answer · answered Apr 06 '22 at 14:36

Using sed

sed -n 's/\(^[^.]*\.\)[jJ][pP]e\?[gG]/mv & \1jpg/p' <(find ~/cw/)

If the dry run indeed changes the files to the expected extension, then you can then execute the command within the sed command

sed -n 's/\(^[^.]*\.\)[jJ][pP]e\?[gG]/mv & \1jpg/pe' <(find ~/cw/)

1 Answers1