Mass Deface &1 > /dev/null || exit $? prereqs="`cat | $bashit | sort | uniq | sed -e 's/^bash(//' -e 's/)$//' -e 's/^executable(//' -e 's/)$//'`" [ -z "$prereqs" ] && exit 0 for prereq in $prereqs do case $prereq in /*) echo $prereq ;; *) echo "`which $prereq`" ;; esac done | sort | uniq