<izabera> ` echo \'for file do mapfile -t lines < "$file"; for (( i = ${#lines[@]} -1; i >= 0; i-- )) do printf "%s\\n" "${lines[i]}"; done done\' >> bin/tac

#! /bin/bash
[[ $# > 0 ]] || { echo "Run what?"; exit 1; }
ci="$*"
echo -n "${ci#*!}" | /hackenv/interps/egobf/src/egobfi8 <(echo -n "${ci%%!*}")