radwho(1) on Linux
The text e51c20bc7ee1, as Debian 7 (Wheezy) shipped it.
show online users
Flags it lists
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-N -
-P -
-R -
-S -
-U -
-Z -
-c -
-d -
-f -
-i -
-n -
-p -
-r -
-s -
-u