[uhtred]

I had no idea exiftool was writen in Perl!

[KronisLV]

Here's a few other tools that are written in Perl, sorted by GitHub popularity: https://github.com/EvanLi/Github-Ranking/blob/master/Top100/...

Actually, that repo has lists like this for most languages: https://github.com/EvanLi/Github-Ranking