Get the list of logged in users


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# 1  
Get the list of logged in users

How can I get the list of logged in users in the system programmatically?
I can get the list with 'who' or 'users' commands but I need to get the list programmatically...
May someone help, please?

Thanks in advance.
# 2  
Doing it without using who would be difficult. Just capture the output of who. Exactly how to do that would depend on what language you're using.
# 3  
man utmp will explain how 'who' gets the list of logged on users from the utmp file.
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