<oerjan> learn print_args_or_input Is a utility command that makes it easy to create a shell script that can be used either as a pipe or directly as a HackEgo command. Use as print_args_or_input "$@" | yourShellCode . See also shebang_args_or_input.

#!/bin/bash
set -e
cd /hackenv/share/mtg && tr -d \\r < MagicCompRules.txt > rules.txt && echo written ~+/rules.txt