They have a comparison of tab, Perl, and Python: https://bitbucket.org/tkatchev/tab#markdown-header-comparison https://bitbucket.org/tkatchev/tab#markdown-heade

They have a comparison of tab, Perl, and Python: https://bitbucket.org/tkatchev/tab#markdown-header-comparison https://bitbucket.org/tkatchev/tab#markdown-header-compariso... TL;DR Perl: 4.1s Python: 3.1s shell (cut, sort, unique): 2.7s awk: 2.1s tab: 0.9 s syntax ./tab -i req.log '{cut(cut(@," ",2),"?",0) -> sum(1)}' vs a few lines of Perl or Python...