1.\" Copyright (c) 1989, 1990, 1993, 1994 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)finger.1 8.3 (Berkeley) 5/5/94 33.\" $FreeBSD$ 34.\" 35.Dd July 22, 2002 36.Dt FINGER 1 37.Os 38.Sh NAME 39.Nm finger 40.Nd user information lookup program 41.Sh SYNOPSIS 42.Nm 43.Op Fl 46glmpshoT 44.Op Ar user ...\& 45.Op Ar user@host ...\& 46.Sh DESCRIPTION 47The 48.Nm 49utility displays information about the system users. 50.Pp 51Options are: 52.Bl -tag -width indent 53.It Fl 4 54Forces 55.Nm 56to use IPv4 addresses only. 57.It Fl 6 58Forces 59.Nm 60to use IPv6 addresses only. 61.It Fl s 62Display the user's login name, real name, terminal name and write 63status (as a ``*'' before the terminal name if write permission is 64denied), idle time, login time, and either office location and office 65phone number, or the remote host. 66If 67.Fl o 68is given, the office location and office phone number is printed 69(the default). 70If 71.Fl h 72is given, the remote host is printed instead. 73.Pp 74Idle time is in minutes if it is a single integer, hours and minutes 75if a ``:'' is present, or days if a ``d'' is present. 76If it is an 77.Dq * , 78the login time indicates the time of last login. 79Login time is displayed as the day name if less than 6 days, else month, day; 80hours and minutes, unless more than six months ago, in which case the year 81is displayed rather than the hours and minutes. 82.Pp 83Unknown devices as well as nonexistent idle and login times are 84displayed as single asterisks. 85.It Fl h 86When used in conjunction with the 87.Fl s 88option, the name of the remote host is displayed instead of the office 89location and office phone. 90.It Fl o 91When used in conjunction with the 92.Fl s 93option, the office location and office phone information is displayed 94instead of the name of the remote host. 95.It Fl g 96This option restricts the gecos output to only the users' real 97name. It also has the side-effect of restricting the output 98of the remote host when used in conjunction with the 99.Fl h 100option. 101.It Fl l 102Produce a multi-line format displaying all of the information 103described for the 104.Fl s 105option as well as the user's home directory, home phone number, login 106shell, mail status, and the contents of the files 107.Pa .forward , 108.Pa .plan , 109.Pa .project 110and 111.Pa .pubkey 112from the user's home directory. 113.Pp 114If idle time is at least a minute and less than a day, it is 115presented in the form ``hh:mm''. 116Idle times greater than a day are presented as ``d day[s]hh:mm''. 117.Pp 118Phone numbers specified as eleven digits are printed as ``+N-NNN-NNN-NNNN''. 119Numbers specified as ten or seven digits are printed as the appropriate 120subset of that string. 121Numbers specified as five digits are printed as ``xN-NNNN''. 122Numbers specified as four digits are printed as ``xNNNN''. 123.Pp 124If write permission is denied to the device, the phrase ``(messages off)'' 125is appended to the line containing the device name. 126One entry per user is displayed with the 127.Fl l 128option; if a user is logged on multiple times, terminal information 129is repeated once per login. 130.Pp 131Mail status is shown as ``No Mail.'' if there is no mail at all, ``Mail 132last read DDD MMM ## HH:MM YYYY (TZ)'' if the person has looked at their 133mailbox since new mail arriving, or ``New mail received ...'', ``Unread 134since ...'' if they have new mail. 135.It Fl p 136Prevent 137the 138.Fl l 139option of 140.Nm 141from displaying the contents of the 142.Pa .forward , 143.Pa .plan , 144.Pa .project 145and 146.Pa .pubkey 147files. 148.It Fl m 149Prevent matching of 150.Ar user 151names. 152.Ar User 153is usually a login name; however, matching will also be done on the 154users' real names, unless the 155.Fl m 156option is supplied. 157All name matching performed by 158.Nm 159is case insensitive. 160.It Fl T 161Disable the piggybacking of data on the initial connection request. 162This option is needed to finger hosts with a broken TCP implementation. 163.El 164.Pp 165If no options are specified, 166.Nm 167defaults to the 168.Fl l 169style output if operands are provided, otherwise to the 170.Fl s 171style. 172Note that some fields may be missing, in either format, if information 173is not available for them. 174.Pp 175If no arguments are specified, 176.Nm 177will print an entry for each user currently logged into the system. 178.Pp 179The 180.Nm 181utility may be used to look up users on a remote machine. 182The format is to specify a 183.Ar user 184as 185.Dq Li user@host , 186or 187.Dq Li @host , 188where the default output 189format for the former is the 190.Fl l 191style, and the default output format for the latter is the 192.Fl s 193style. 194The 195.Fl l 196option is the only option that may be passed to a remote machine. 197.Pp 198If the file 199.Pa .nofinger 200exists in the user's home directory, 201.Nm 202behaves as if the user in question does not exist. 203.Pp 204The optional 205.Xr finger.conf 5 206configuration file can be used to specify aliases. 207Since 208.Nm 209is invoked by 210.Xr fingerd 8 , 211aliases will work for both local and network queries. 212.Sh ENVIRONMENT 213The 214.Nm 215utility utilizes the following environment variable, if it exists: 216.Bl -tag -width Fl 217.It Ev FINGER 218This variable may be set with favored options to 219.Nm . 220.El 221.Sh FILES 222.Bl -tag -width /var/log/lastlog -compact 223.It Pa /etc/finger.conf 224alias definition data base 225.It Pa /var/log/lastlog 226last login data base 227.El 228.Sh SEE ALSO 229.Xr chpass 1 , 230.Xr w 1 , 231.Xr who 1 , 232.Xr finger.conf 5 , 233.Xr fingerd 8 234.Rs 235.%A D. Zimmerman 236.%T The Finger User Information Protocol 237.%R RFC 1288 238.%D December, 1991 239.Re 240.Sh HISTORY 241The 242.Nm 243command appeared in 244.Bx 3.0 . 245.Sh BUGS 246The current FINGER protocol RFC requires that the client keep the connection 247fully open until the server closes. This prevents the use of the optimal 248three-packet T/TCP exchange. (Servers which depend on this requirement are 249bogus but have nonetheless been observed in the Internet at large.) 250