# who(1)

## NAME

         who - print list of currently logged in users

## SYNOPSIS

         who [file]

## EXAMPLES

         who                 # Print user names, terminals and times

## DESCRIPTION

         Who prints a list of currently logged in users.  For each one,  the  user
         name,  terminal,  and  login  time  is  printed.  This  program  gets its
         information from the file /etc/utmp, which is updated by init and  login.
         If the file does not exist, neither of these will create it, and who will
         not work.  Note that if you decide to create an  empty  /usr/adm/wtmp  to
         enable  the login accounting, it will grow forever and eventually fill up
         your disk unless you manually truncate it  from  time  to  time.   If  an
         optional file name is provided, the logins in that file will be printed.

## SEE ALSO

         utmp(5).