出處:http://blog.chinaunix.net/uid-12115233-id-390539.html
需求:
假設w輸出類似這樣
user1 pts/0 ...................... -bash
user1 pts/1 ...................... -bash
user2 pts/2 ...................... -bash
user2 pts/3 ...................... w
有沒有命令對指定的tty註銷用戶?又有沒有命令對指定的用戶註銷所有tty?
總感覺用ps kill -9 太暴力了點,也不方便......
其實可以通過skill命令來實現:
# skill
Usage: skill [signal to send] [options] process selection criteria
Example: skill -KILL -v pts/*
The default signal is TERM. Use -l or -L to list available signals.
Particularly useful signals include HUP, INT, KILL, STOP, CONT, and 0.
Alternate signals may be specified in three ways: -SIGKILL -KILL -9
General options:
-f fast mode This is not currently useful.
-i interactive use You will be asked to approve each action.
-v verbose output Display information about selected processes.
-w warnings enabled This is not currently useful.
-n no action This only displays the process ID.
Selection criteria can be: terminal, user, pid, command.
The options below may be used to ensure correct interpretation.
-t The next argument is a terminal (tty or pty).
-u The next argument is a username.
-p The next argument is a process ID number.
-c The next argument is a command name.
-t 這個參數可以多利用