#!/bin/shcase "$1" in"good-vars")echo "EXTRA=var; export EXTRA"echo "SSH_AUTH_SOCKET=socket; export SSH_AUTH_SOCKET"echo "SSH_AGENT_PID=100; export SSH_AGENT_PID"echo "EXTRA2=100; export EXTRA2"exit 0;;"bad-vars")echo "Just a bunch of nothing"echo "TEST=var; export TEST"exit 0;;*)echo "Normal output"echo "Bad things" 1>&2exit 1;;esac