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Annotation of 43BSDReno/usr.bin/who/who.1, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1990 Regents of the University of California.
                      2: .\" All rights reserved.  The Berkeley software License Agreement
                      3: .\" specifies the terms and conditions for redistribution.
                      4: .\"
                      5: .\"     @(#)who.1      6.3 (Berkeley) 6/24/90
                      6: .\"
                      7: .TH WHO 1 "%Q"
                      8: .AT 3
                      9: .SH NAME
                     10: who \- who is on the system
                     11: .SH SYNOPSIS
                     12: .B who
                     13: [ who-file ] [
                     14: .B "am I"
                     15: ]
                     16: .SH DESCRIPTION
                     17: \fIWho,\fP without any argument, reads the /var/run/utmp file,
                     18: and lists the login name, terminal name, and login time for each
                     19: user currently logged into the system.  If a single argument is
                     20: given, \fIwho\fP uses that file instead of /var/run/utmp.  Typically,
                     21: that file will be /var/log/wtmp, which contains a record of all
                     22: the logins, logouts, crashes, shutdowns and time changes since it
                     23: was created.  In either case, each login will be listed with the
                     24: user name, the terminal name (with "/dev/" suppressed), login date
                     25: and time, and, if applicable, the host logged in from.
                     26: .PP
                     27: If /var/log/wtmp is being used as the file, the user name may be empty
                     28: or one of the special characters '|', '}' and '~'.  Logouts produce
                     29: an output line without any user name.  For more information on the
                     30: special characters, see utmp(5).
                     31: .PP
                     32: With two arguments, as in `who am I' (and also `who are you'),
                     33: \fIwho\fP tells you who you are logged in as.
                     34: .SH FILES
                     35: .DT
                     36: /var/run/utmp
                     37: .br
                     38: /var/log/wtmp
                     39: .SH "SEE ALSO"
                     40: last(1), users(1), getuid(2), utmp(5)

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