who man page on MirBSD

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WHO(1)			     BSD Reference Manual			WHO(1)

NAME
     who - display who is logged in

SYNOPSIS
     who [-HmqTu] [file]
     who am i

DESCRIPTION
     The who utility displays a list of all users currently logged on, showing
     for each user the login name, tty name, the date and time of login, and
     hostname if not local.

     The options are as follows:

     -H	     Write column headings above the regular output.

     -m	     Only print information about the current terminal. This is the
	     POSIX way of saying who am i.

     -q	     (Quick.) List only the names and the number of users currently
	     logged on. When this option is used, all other options are ig-
	     nored.

     -T	     Print a character after the user name indicating the state of the
	     terminal line: '+' if the terminal is writable; '-' if it is not;
	     and '?' if a bad line is encountered.

     -u	     Print the idle time for each user.

     am I    Returns the invoker's real user name.

     file    By default, who gathers information from the file /var/run/utmp.
	     An alternate file may be specified which is usually /var/log/wtmp
	     (or /var/log/wtmp.[0-6] depending on site policy as wtmp can grow
	     quite large and daily versions may or may not be kept around
	     after compression by ac(8)). The wtmp file contains a record of
	     every login, logout, crash, shutdown and date change since wtmp
	     was last truncated or created.

     If /var/log/wtmp is being used as the file, the user name may be empty or
     one of the special characters '|', '}', and '~'. Logouts produce an out-
     put line without any user name. For more information on the special char-
     acters, see utmp(5).

FILES
     /var/run/utmp
     /var/log/wtmp
     /var/log/wtmp.[0-6]

SEE ALSO
     last(1), mesg(1), users(1), w(1), getuid(2), utmp(5)

STANDARDS
     The who utility is expected to conform to IEEE Std 1003.2-1992
     ("POSIX.2").

HISTORY
     A who utility appeared in Version 3 AT&T UNIX.

MirOS BSD #10-current	       December 6, 1994				     1
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