root::0:root
bin::1:root,bin,daemon
daemon::2:root,bin,daemon
sys::3:root,bin,adm
adm::4:root,adm,daemon
tty::5:
disk::6:root,adm
mem::8:
kmem::9:
wheel::10:root
floppy::11:root
mail::12:mail
man::15:
audio::17:
video::18:
cdrom::19:
utmp::22:
smmsp::25:smmsp
sshd::33:sshd
gdm::42:
shadow::43:
ftp::50:
pop::90:pop
nobody::98:nobody
nogroup::99:
users::100:
console::101:
www:x:80: