On Thu, Feb 04, 2010 at 02:27:27PM -0700, Justin T Pryzby wrote: > awk -v s=toxtracker.info 'BEGIN{RS=""; s="zone \""s"\""} $0~s{print $0"\n"}' Doh, should be: awk -v s=toxtracker.info 'BEGIN{RS=""; s="zone \""s"\""} $0!~s{print $0"\n"}'