NR == 1 { # Tue Dec 15 07:00:00 GMT 1959 Weekday = $1 Month = $2 Day = $3 Time = $4 Timezone = $5 Year = $6 } NR == 2 { if (NF == 0) # MinGW gives an empty line exit 0 # Some BSDs give us UTC in the timezone if ($1 == Weekday && $2 == Month && $3 == Day && $4 == Time && $6 == Year) exit 0 # Some other mismatch exit 1 }