Lista de usuários padrão no GNU/Linux

USER	UID	GID	HOME DIR	SHELL
root	0	0	/root	/bin/bash
bin	1	1		/sbin/nologin
daemon	2	2	/sbin	/sbin/nologin
adm	3	3	/var/adm	/sbin/nologin
lp	4	7	/var/spool/lpd	/sbin/nologin
sync	5	0	/sbin	/sbin/sync
shutdown	6	0	/sbin	/sbin/shutdown
halt	7	0	/sbin	/sbin/halt
mail	8	12	/var/spool/mail	/sbin/nologin
news	9	13	/var/spool/news
uucp	10	14	/var/spool/uucp	/sbin/nologin
operator	11	0	/root	/sbin/nologin
games	12	100	/usr/games	/sbin/nologin
gopher	13	30	/usr/lib/gopher-data	/sbin/nologin
ftp	14	50	/var/ftp	/sbin/nologin
nobody	99	99	/	/sbin/nologin
vcsa	69	69	/dev	/sbin/nologin
rpm	37	37	/var/lib/rpm	/bin/bash
wnn	49	49	/var/lib/wnn	/bin/bash
ntp	38	38	/etc/ntp	/sbin/nologin
nscd	28	28	/	/bin/false
apache	48	48	/var/www	/bin/false
mysql	27	27	/var/lib/mysql	/bin/bash
mailnull	47	47	/var/spool/mqueue	/sbin/nologin
smmsp	51	51	/var/spool/mqueue	/sbin/nologin
rpc	32	32	/	/sbin/nologin
xfs	43	43	/etc/X11/fs	/sbin/nologin
gdm	42	42	/var/gdm	/sbin/nologin
rpcuser	29	29	/var/lib/nfs	/sbin/nologin
nsfnobody	65534	65534	/var/lib/nfs	/sbin/nologin
sshd	74	74	/var/empty/sshd	/sbin/nologin
ident	98	98	/	/sbin/nologin
radvd	75	75	/	/bin/false
postgres	26	26	/var/lib/pqsql	/bin/bash
squid	23	23	/var/squid	/dev/null
named	25	25	/var/named	/bin/false
pcap	77	77	/var/arpwatch	/sbin/nologin
amanda	33	6	var/lib/amanda/	/bin/bash
ldap	55	55	/var/lib/ldap	/bin/false
postfix	89	89	/var/spool/postfix	/bin/true
privoxy	100	101	/etc/privoxy
pvm	24	24	/usr/share/pvm3	/bin/bash
Podem ocorrer diferenças entre distros