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32 .\" @(#)finger.1 8.3 (Berkeley) 5/5/94
40 .Nd user information lookup program
49 displays information about the system users.
55 displays the user's login name, real name, terminal name and write
56 status (as a ``*'' before the terminal name if write permission is
57 denied), idle time, login time, and either office location and office
58 phone number, or the remote host.
61 is given, the remote host is printed (the default). If
63 is given, the office location and office phone number is printed
66 Idle time is in minutes if it is a single integer, hours and minutes
67 if a ``:'' is present, or days if a ``d'' is present.
68 Login time is displayed as the dayname if less than 6 days, else month, day;
69 hours and minutes, unless more than six months ago, in which case the year
70 is displayed rather than the hours and minutes.
72 Unknown devices as well as nonexistent idle and login times are
73 displayed as single asterisks.
76 When used in conjunction with the
78 option, the name of the remote host is displayed instead of the office
79 location and office phone.
82 When used in conjunction with the
84 option, the office location and office phone information is displayed
85 instead of the name of the remote host.
88 Produces a multi-line format displaying all of the information
91 option as well as the user's home directory, home phone number, login
92 shell, mail status, and the contents of the files
97 from the user's home directory.
99 If idle time is at least a minute and less than a day, it is
100 presented in the form ``hh:mm''.
101 Idle times greater than a day are presented as ``d day[s]hh:mm''.
103 Phone numbers specified as eleven digits are printed as ``+N-NNN-NNN-NNNN''.
104 Numbers specified as ten or seven digits are printed as the appropriate
105 subset of that string.
106 Numbers specified as five digits are printed as ``xN-NNNN''.
107 Numbers specified as four digits are printed as ``xNNNN''.
109 If write permission is denied to the device, the phrase ``(messages off)''
110 is appended to the line containing the device name.
111 One entry per user is displayed with the
113 option; if a user is logged on multiple times, terminal information
114 is repeated once per login.
116 Mail status is shown as ``No Mail.'' if there is no mail at all, ``Mail
117 last read DDD MMM ## HH:MM YYYY (TZ)'' if the person has looked at their
118 mailbox since new mail arriving, or ``New mail received ...'', ``Unread
119 since ...'' if they have new mail.
127 from displaying the contents of the
138 is usually a login name; however, matching will also be done on the
139 users' real names, unless the
142 All name matching performed by
147 Disable the use of T/TCP (see
149 This option is needed to finger hosts with a broken TCP implementation.
152 If no options are specified,
156 style output if operands are provided, otherwise to the
159 Note that some fields may be missing, in either format, if information
160 is not available for them.
162 If no arguments are specified,
164 will print an entry for each user currently logged into the system.
167 may be used to look up users on a remote machine.
168 The format is to specify a
174 where the default output
175 format for the former is the
177 style, and the default output format for the latter is the
182 option is the only option that may be passed to a remote machine.
186 exists in the user's home directory,
188 behaves as if the user in question does not exist.
192 configuration file can be used to specify aliases.
197 aliases will work for both local and network queries.
200 utilizes the following environment variable, if it exists:
203 This variable may be set with favored options to
207 .Bl -tag -width /var/log/lastlog -compact
208 .It Pa /etc/finger.conf
209 alias definition data base
210 .It Pa /var/log/lastlog
222 .%T The Finger User Information Protocol
232 The current FINGER protocol RFC requires that the client keep the connection
233 fully open until the server closes. This prevents the use of the optimal
234 three-packet T/TCP exchange. (Servers which depend on this requirement are
235 bogus but have nonetheless been observed in the Internet at large.)