how to see users effective user ID

[bodisha]

Hello and thanks in advance for anyone that can offer me any help with this!

I'm trying to figure out a quick & easy way to see a list of everyone's effective user id... I would have thought 'w' or 'who' would be able to display if someone had switched user accounts... but it's only showing the real user ID they logged in with.

Once against... thanks for any help!

[avij]

Maybe whoami ?