명령어

$> cat /etc/passwd
$> cut -f1 -d: /etc/passwd

실행예시

[root@zetawiki ~]# cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
.. (생략)
named:x:25:25:Named:/var/named:/sbin/nologin

[root@zetawiki ~]# cut -f1 -d: /etc/passwd
root
bin
daemon
.. (생략)
named