ref: 7580235939d2c4f300827b9444675f35341a00e0
dir: /REGRESS/
#! /bin/sh if [ -d testdir ] then true # do nothing elif [ -f awktest.tar ] then echo extracting testdir tar -xpf awktest.tar else echo $0: No testdir directory and no awktest.tar to extract it from! >&2 exit 1 fi cd testdir pwd PATH=.:$PATH export PATH REGRESS