(coreutils) The who command

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(coreutils) I/O redirection

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(coreutils) The cut command

 
 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.
 

Info Catalog

(coreutils) I/O redirection

(coreutils) Opening the software toolbox

(coreutils) The cut command