How to find out older sessions
 

How to find out the older session on server ?
If any user logged in on the server and that session remains ideal for a longer time how to detacte that and how to kill that session ?
what kind of problems can occure due to older sessions?
how to find out since when no activity is done by the user who opened that session?

Hi,

I think you might be looking for the who command, check out the man page for available options:
Kind regards,

Eric

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