root::0:root
daemon::1:root,daemon
bin::2:root,bin,daemon
sync::3:sync
adm::4:root,adm,daemon
uucp::5:
mail::7:root
info::8:root,adm,info
cron::16:
tty::17:
lp::18:
disk::19:root,adm
mem::20:
kmem::21:
user::50:
other::59:
none::65534:
