1echo T.flags: test some commandline flags 2 3awk=${awk-../a.out} 4 5$awk >foo 2>&1 6grep '[Uu]sage' foo >/dev/null || echo 'T.flags: bad usage' 7 8$awk -f >foo 2>&1 9grep 'no program' foo >/dev/null || echo 'T.flags: bad no program' 10 11$awk -f glop/glop >foo 2>&1 12grep 'can.t open' foo >/dev/null || echo 'T.flags: bad can.t open program' 13 14$awk -fglop/glop >foo 2>&1 15grep 'can.t open' foo >/dev/null || echo 'T.flags: bad can.t open program 2' 16 17$awk -zz 'BEGIN{}' >foo 2>&1 18grep 'unknown option' foo >/dev/null || echo 'T.flags: bad unknown option' 19 20$awk -F >foo 2>&1 21grep 'no field separator' foo >/dev/null || echo 'T.flags: bad missing field separator' 22 23$awk -F '' >foo 2>&1 24grep 'field separator FS is empty' foo >/dev/null || echo 'T.flags: bad empty field separator' 25