ログイン中のユーザ情報

users, who, w コマンドなど

[user@system trunk]$ users
user1 user2 user3 user

[user@system trunk]$ who
user   pts/0        2009-05-29 10:12 (192.168.11.205)
admin    pts/4        2009-05-30 00:01 (192.168.10.125)

[user@system trunk]$ w
 08:45:22 up 63 days, 20:46,  2 users,  load average: 0.01, 0.01, 0.00
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
user   pts/0    192.168.11.205   Fri10    0.00s  0.06s  0.00s w
admin    pts/4    192.168.10.125   00:01    8:42m  0.02s  0.02s -bash