I used to write many Perl tools for command line (I currently use Python because of team's tribal knowledge), though I make the choice between Perl/Python and s

I used to write many Perl tools for command line (I currently use Python because of team's tribal knowledge), though I make the choice between Perl/Python and shell looking not at the expected size, but at what kind of processing it is. Shell is an excellent tool when it comes to call external commands and generally working with files, and no other language makes it as easy.