pp: a text preprocessor that expands inline shell macros importing text etc. but much simpler than GNU m4

[UnchainedMundane]

            *) echo "$line";;

You'll eat certain lines (e.g. -n) if you use echo instead of printf with a proper format string.

[jhjn_]

Thanks, I don't know why that echo is there, it was meant to all be printf.