Detailed explanation of w command
| Introduction | Thew command is used to display the list of users who have logged in to the system and display the instructions that the user is executing. Execute this command to know who are the users currently logged into the system and what programs they are executing. Executing the w command alone will display all users. You can also specify a user name to display only the relevant information of a certain user. Let us explain in detail how to use the w command. |
w(选项)(参数)
-h：不打印头信息； -u：当显示当前进程和cpu时间时忽略用户名； -s：使用短输出格式； -f：显示用户从哪登录； -V：显示版本信息。
用户：仅显示指定用户。
w 20:39:37 up 136 days, 3:58, 1 user, load average: 0.00, 0.00, 0.00 USER TTY FROM login@ IDLE JCPU PCPU WHAT root pts/0 222.94.97.122 20:39 1.00s 0.00s 0.00s w
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