List User Login Details

Problem

Needing to view current activity of users on the system.



Solution

Most flavours of UNIX provide a number of tools, to tell you who is logged in or when they last accessed the system.



Example


A favorite of mine, is who -Hu – really good for seeing who is idle, quite literally! 🙂

Also you can just run last – although beware of rolled logs. Generally in /var/adm/wtmp* on Solaris and /var/log/wtmp* on Linux.

If you want to run last against an older file (by default it just uses wtmpx or wtmp) – just specify minus f – like this: last -f /var/log/wtmp.1

Additionally the finger command will quite often show last login time.





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