who – find out who is on the system
who is one of basic Unix commands, which allows you to quickly see who else is logged in.
who – default behaviour
When you run who without any parameters, it returns you a list of users on your Unix system, along with terminals they’re using, the time of the start for each session, and the hostnames where these users are logged in from.
{% highlight command %} bash-2.03# who ann pts/2 Jan 16 08:36 (linuxws-1) greys pts/4 Jan 17 10:37 (linuxserver) {% endhighlight %}
who am i
When you just want to confirm how many login sessions you have running on the system, you need to use a special form of the who command:
{% highlight command %} bash-2.03# who greys pts/4 Jan 17 10:37 (linuxserver) {% endhighlight %}
Because my username is greys, I can only see my own sessions.
See Also
- basic Unix commands
- Unix Commands
- id – print user identity
