root::0:root
other::1:
bin::2:root,bin,daemon
sys::3:root,bin,sys,adm
adm::4:root,adm,daemon
uucp::5:uucp
mail::7:root
daemon::12:root,daemon
cron::16:
lp::18:lp
mem::20:
sysadmin::23:sysadmin
group::50:
