-bash-3.00$ cat /etc/passwd |cut -f 1 -d:
root
daemon
bin
sys
adm
uucp
guest
nobody
lpd
lp
invscout
snapp
ipsec
nuucp
sshd
ortklgpi
orabak
applbak
apuklgpi
oruklgpi
szdev
hkdev
szdev2
hksa
aptklgpi
hkdev2
user
hkkolftp