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Thank you for the very fast reply! It worked when I logged in as root, but then I went to another shell, logged in as TEST, and unfortunately it didn't work there, although typing in WHO as TEST gave me results. Any other possibilities for that line?
One more question if I may - I need to do the same thing I did with the WHO command but with the ps command. I tried adding that line below the who | grep `whoami` with ps substituted for who but it didn't take. Any ideas?
Thanks to both of you for the quick replies - both solutions work but in slightly different ways - Kilgore's has slightly more info in the output than billy's, but they are both pretty much what I was looking for. Great job! Really helped me a lot!