BEGIN { RS = "" } { if (/^A/) print "ok" else print "not ok" if (/B$/) print "not ok" else print "ok" if (/^C/) print "not ok" else print "ok" if (/D$/) print "not ok" else print "ok" if (/^E/) print "not ok" else print "ok" if (/F$/) print "ok" else print "not ok" }