로그인 된 사용자 확인 법
[root@test etc]# last
root pts/0 192.168.10.1 Wed Jun 7 09:59 still logged in
root tty1 Wed Jun 7 09:58 still logged in
reboot system boot 3.10.0-327.el7.x Wed Jun 7 09:58 - 11:02 (01:04)
root pts/2 192.168.10.1 Thu Feb 23 15:13 - crash (103+18:44)
root pts/1 192.168.10.101 Thu Feb 23 13:36 - 17:24 (03:47)
root pts/0 192.168.10.1 Thu Feb 23 09:55 - crash (104+00:02)
reboot system boot 3.10.0-327.el7.x Thu Feb 23 09:05 - 11:02 (104+01:57)
root pts/0 192.168.10.1 Wed Feb 22 15:15 - crash (17:50)
reboot system boot 3.10.0-327.el7.x Wed Feb 22 15:14 - 11:02 (104+19:48)
root tty1 Wed Feb 22 15:10 - 15:11 (00:01)
reboot system boot 3.10.0-327.el7.x Wed Feb 22 15:09 - 15:11 (00:01)
wtmp begins Wed Feb 22 15:09:58 2017
로그인 사용자만 확인
[root@test etc]# last |grep logged
root pts/0 192.168.10.1 Wed Jun 7 09:59 still logged in
root tty1 Wed Jun 7 09:58 still logged in