[problem]
Needing to view current activity of users on the system.
[/problem]
[solution]
Most flavours of UNIX provide a number of tools, to tell you who is logged in or when they last accessed the system.
[/solution]
[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.
[/example]
[reference]
[tags]who, last, finger, Unix Coding School[/tags]
[/reference]
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