You can use the w command to show the current logged-in users on a Linux system:
$ w
This command will show the following information for each user:
USER: the username of the user.TTY: the terminal associated with the user.FROM: the hostname or IP address from which the user logged in.LOGIN@: the time when the user logged in.IDLE: the time the user has been idle.JCPU: the time used by all processes attached to the terminal.PCPU: the time used by the current process attached to the terminal.WHAT: the command being executed by the user.
You can also use the who command to show the current logged-in users:
who
This command will show the following information for each user:
NAME: the username of the user.LINE: the terminal associated with the user.TIME: the time when the user logged in.IDLE: the time the user has been idle (if supported by the terminal).HOST: the hostname or IP address from which the user logged in (if supported by the terminal).