The //**w**// command in Linux and Unix-like systems is used to display information about the users currently logged in to the system and the processes they are running. It shows the user's login name, their terminal, the time they have been logged in, and the command they are currently running.

Here are a few examples of how the **w** command can be used in //**Linux**// and //**FreeBSD**//:

  - Display information about all logged-in users: **w**
  - Display information about a specific user: **w username**

The **w** command without any options will display the current system time, the uptime of the system, the host's load averages, the username, the terminal, the login time, the idle time, and the command the user is running for all users currently logged in to the system.