1#!/bin/sh23if tty -s4then5echo "Run 'help' for help, or 'exit' to leave. Available commands:"6else7echo "Run 'help' for help. Available commands:"8fi910cd "$(dirname "$0")"1112for cmd in *13do14case "$cmd" in15help) ;;16*) [ -f "$cmd" ] && [ -x "$cmd" ] && echo "$cmd" ;;17esac18done