#!/bin/sh [ -f file-tail ] && rm file-tail wget 'http://search.cpan.org/~mgrabnar/File-Tail-0.99.3/Tail.pm' -O file-tail >/dev/null 2>/dev/null if [ $? = 0 ]; then [ -f unfetchable ] && rm unfetchable grep 'Module Version:' < file-tail | md5sum > new-sum touch sum if [ "$(cat sum)" = "$(cat new-sum)" ]; then rm new-sum else mv new-sum sum echo 'perl-file-tail' fi elif [ ! -f unfetchable ]; then touch unfetchable echo 'perl-file-tail (unfetchable)' fi