查看当前登录用户
$ whatis w
w (1) - Show who is logged on and what they are doing
$ w
09:49:30 up 1 day, 17:19, 4 users, load average: 0.00, 0.00, 0.00
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root tty3 - 09:25 23:25 0.10s 0.08s -bash
root pts/0 192.168.105.188 09:32 9:38 0.02s 0.02s -bash
root pts/1 192.168.105.188 09:36 9:32 0.03s 0.02s -bash
wilsh pts/2 192.168.105.188 09:41 0.00s 0.00s 0.00s w
pkill 踢出用户
$ whatis pkill
pkill [pgrep] (1) - look up or signal processes based on name and other attributes
pkill -kill -t pts/2
pkill -9 -u wilsh
fuser 踢出用户
$ whatis fuser
fuser (1) - identify processes using files or sockets
fuser -k /dev/pts/2