Rename multiple files with sed

Question

How can i rename files with titles like Stargate SG-1 Season 01 Episode 01 to just "s01e01"? Variable numbering of course. I already have something like this:

for file in *.mkv; do mv "$file" "$(echo "$file" | sed -e "REGEX HERE")

I just need the sed command that does what i need.

Thanks

Answer 1

No need for sed, try this:

#!/bin/bash

for f in *.mkv;
do
    set -- $f
    mv "$f" s${4}e${6}
done

in action:

$ ls
Stargate SG-1 Season 01 Episode 01.mkv

$ ./l.sh 

$ ls
s01e01.mkv

Answer 2

GNU sed

for file in *.mkv; do mv "$file" "$(echo "$file" | sed -e 's/.*\(\S\+\)\s\+\S\+\s\(\S\+\)$/s\1e\2/')