1 wheel:*:0:root 2 daemon:*:1:daemon 3 kmem:*:2:root 4 sys:*:3:root 5 tty:*:4:root 6 operator:*:5:root 7 mail:*:6: 8 bin:*:7: 9 news:*:8: 10 wsrc:*:9: 11 maildrop:*:11: 12 postfix:*:12: 13 games:*:13: 14 staff:*:20:root 15 guest:*:31:root 16 nobody:*:39: 17 utmp:*:45: 18 ingres:*:74:ingres 19 users:*:100: 20 dialer:*:117: 21 nogroup:*:32766: 22