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28 .\" @(#)who.1 8.2 (Berkeley) 12/30/93
36 .Nd display who is on the system
45 utility displays information about currently logged in users.
46 By default, this includes the login name, tty name, date and time of login and
47 remote hostname if not local.
49 The options are as follows:
50 .Bl -tag -width indent
52 Write column headings above the output.
54 Show information about the terminal attached to standard input only.
57 List the names and number of logged in users in columns.
58 All other command line options are ignored.
60 Show the name, line and time fields only.
63 Indicate whether each user is accepting messages.
64 One of the following characters is written:
66 .Bl -tag -width 1n -compact
68 User is accepting messages.
70 User is not accepting messages.
75 Show idle time for each user in hours and minutes as
76 .Ar hh Ns : Ns Ar mm ,
78 if the user has been idle less than a minute, and
80 if the user has been idle more than 24 hours.
88 gathers information from the file
89 .Pa /var/run/utx.active .
92 may be specified which is usually
95 .Pa /var/log/utx.log.[0-6]
96 depending on site policy as
98 can grow quite large and daily versions may or may not
99 be kept around after compression by
103 file contains a record of every login, logout,
104 crash, shutdown and date change
107 was last truncated or
112 is being used as the file, the user name may be empty
113 or one of the special characters '|', '}' and '~'.
115 an output line without any user name.
116 For more information on the
117 special characters, see
121 .Ev COLUMNS , LANG , LC_ALL
124 environment variables affect the execution of
129 .Bl -tag -width /var/log/utx.log.[0-6] -compact
130 .It Pa /var/run/utx.active
131 .It Pa /var/log/utx.log
132 .It Pa /var/log/utx.log.[0-6]