who man page on Ultrix

who man page on Ultrix

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Output format

who(1)									who(1)

Name
       who - print who and where users are logged in

Syntax
       who [who-file] [am i]

Description
       The  command, without an argument, lists the login name, terminal name,
       and login time for each current UNIX user.

       Without an argument, examines the /etc/utmp file to obtain its informa‐
       tion.   If a file is given, that file is examined.  Typically the given
       file will be /usr/adm/wtmp, which contains a record of all  the	logins
       since  it  was  created.	 Then lists logins, logouts, and crashes since
       the creation of the wtmp file.  Each login is listed  with  user	 name,
       terminal	 name  (with  /dev/  suppressed),  and date and time.  When an
       argument is given, logouts produce a similar line without a user	 name.
       Reboots	produce a line with `~' in the place of the device name, and a
       fossil time indicative of when the system went down.

       With two arguments, as in `who am I' (and also `who  are	 you'),	 tells
       who you are logged in as.

Files
       /etc/utmp

See Also
       getuid(2), utmp(5)

									who(1)

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