unixdev.net


Switch to SpeakEasy.net DSL

The Modular Manual Browser

Home Page
Manual: (SunOS-4.1.3)
Page:
Section:
Apropos / Subsearch:
optional field

WHO(1)                      General Commands Manual                     WHO(1)



NAME
       who - who is logged in on the system

SYNOPSIS
       who [ who-file ] [ am i ]

DESCRIPTION
       Used  without  arguments,  who lists the login name, terminal name, and
       login time for each current user.  who gets this information  from  the
       /etc/utmp file.

       If  a filename argument is given, the named file is examined instead of
       /etc/utmp.  Typically the named file is /var/adm/wtmp, which contains a
       record  of  all  logins  since it was created.  In this case, who lists
       logins, logouts, and crashes.  Each login is  listed  with  user  name,
       terminal name (with /dev/ suppressed), and date and time.  Logouts pro-
       duce a similar line without a user name.  Reboots produce a  line  with
       `~'  in place of the device name, and a fossil time indicating when the
       system went down.  Finally, the adjacent pair of entries  `|'  and  `}'
       indicate  the  system-maintained time just before and after a date com-
       mand changed the system's idea of the time.

       With two arguments, as in `who am i' (and also `who is who'), who tells
       who  you are logged in as:  it displays your hostname, login name, ter-
       minal name, and login time.

EXAMPLES
              example% who am i
              example!ralph  ttyp0     Apr 27 11:24
              example%

              example% who
              mktg   ttym0   Apr 27 11:11
              gwen   ttyp0   Apr 27 11:25
              ralph       ttyp1   Apr 27 11:30
              example%

FILES
       /etc/utmp
       /var/adm/wtmp

SEE ALSO
       login(1), w(1), whoami(1), utmp(5V), locale(5)



                               23 September 1987                        WHO(1)