Hi,

I want to know how to check who is logged on server in aix?,I have used the command who but it does.nt show me user who is logged in

There are a few commands that you can use to tell who is logged in.

Try any of the following:
who will just show the bare minimum about who is logged into the system. It will show you their name, tty they've logged into, when they logged in, and where they are logging in from.

OR
finger will tell you everything that who will, but it displays the information in a more user-friendly table. Also, finger will even tell you the user's phone number if it is stored on the system.

OR
pinky will tell you what finger would, but it labels the columns in the table differently and shows the exact same information displayed from who.