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(textutils.info)The who command

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The `who' command
=================

   The first program is the `who' command.  By itself, it generates a
list of the users who are currently logged in.  Although I'm writing
this on a single-user system, we'll pretend that several people are
logged in:

     $ who
     arnold   console Jan 22 19:57
     miriam   ttyp0   Jan 23 14:19(:0.0)
     bill     ttyp1   Jan 21 09:32(:0.0)
     arnold   ttyp2   Jan 23 20:48(:0.0)

   Here, the `$' is the usual shell prompt, at which I typed `who'.
There are three people logged in, and I am logged in twice.  On
traditional Unix systems, user names are never more than eight
characters long.  This little bit of trivia will be useful later.  The
output of `who' is nice, but the data is not all that exciting.