W (Unix)
| w | |
|---|---|
| Operating system | Unix and Unix-like | 
| Type | Command | 
The command w on many Unix-like operating systems provides a quick summary of every user logged into a computer, what each user is currently doing, and what load all the activity is imposing on the computer itself. The command is a one-command combination of several other Unix programs: who, uptime, and ps -a.