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Annotation of src/usr.bin/who/who.1, Revision 1.1.1.1

1.1       deraadt     1: .\"    $NetBSD: who.1,v 1.5 1994/12/07 04:28:47 jtc Exp $
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                     34: .\"     @(#)who.1      8.2 (Berkeley) 12/30/93
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                     36: .Dd December 6, 1994
                     37: .Dt WHO 1
                     38: .Os
                     39: .Sh NAME
                     40: .Nm who
                     41: .Nd display who is logged in
                     42: .Sh SYNOPSIS
                     43: .Nm who
                     44: .Op Fl mTu
                     45: .Op Ar file
                     46: .Nm who
                     47: .Ar am i
                     48: .Sh DESCRIPTION
                     49: The
                     50: .Nm who
                     51: utility displays a list of all users currently logged on, showing for
                     52: each user the login name, tty name, the date and time of login, and
                     53: hostname if not local.
                     54: .Pp
                     55: Available options:
                     56: .Pp
                     57: .Bl -tag -width file
                     58: .It Fl m
                     59: Only print information about the current terminal.  This is the
                     60: .Tn POSIX
                     61: way of saying
                     62: .Nm who
                     63: .Ar am i .
                     64: .It Fl T
                     65: Print a character after the user name indicating the state of the
                     66: terminal line:
                     67: .Sq +
                     68: if the terminal is writable;
                     69: .Sq -
                     70: if it is not;
                     71: and
                     72: .Sq ?
                     73: if a bad line is encountered.
                     74: .It Fl u
                     75: Print the idle time for each user.
                     76: .It Ar \&am I
                     77: Returns the invoker's real user name.
                     78: .It Ar file
                     79: By default,
                     80: .Nm who
                     81: gathers information from the file
                     82: .Pa /var/run/utmp .
                     83: An alternate
                     84: .Ar file
                     85: may be specified which is usually
                     86: .Pa /var/log/wtmp
                     87: (or
                     88: .Pa /var/log/wtmp.[0-6]
                     89: depending on site policy as
                     90: .Pa wtmp
                     91: can grow quite large and daily versions may or may not
                     92: be kept around after compression by
                     93: .Xr ac 8 ) .
                     94: The
                     95: .Pa wtmp
                     96: file contains a record of every login, logout,
                     97: crash, shutdown and date change
                     98: since
                     99: .Pa wtmp
                    100: was last truncated or
                    101: created.
                    102: .El
                    103: .Pp
                    104: If
                    105: .Pa /var/log/wtmp
                    106: is being used as the file, the user name may be empty
                    107: or one of the special characters '|', '}' and '~'.  Logouts produce
                    108: an output line without any user name.  For more information on the
                    109: special characters, see
                    110: .Xr utmp 5 .
                    111: .Sh FILES
                    112: .Bl -tag -width /var/log/wtmp.[0-6] -compact
                    113: .It Pa /var/run/utmp
                    114: .It Pa /var/log/wtmp
                    115: .It Pa /var/log/wtmp.[0-6]
                    116: .El
                    117: .Sh SEE ALSO
                    118: .Xr last 1 ,
                    119: .Xr mesg 1 ,
                    120: .Xr users 1 ,
                    121: .Xr getuid 2 ,
                    122: .Xr utmp 5
                    123: .Sh HISTORY
                    124: A
                    125: .Nm
                    126: utility appeared in
                    127: .At v6 .
                    128: .Sh STANDARDS
                    129: The
                    130: .Nm
                    131: utility is expected to conform to
                    132: .St -p1003.2-92 .