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: src/usr.bin/finger/finger.1,v 1.9.2.12 2003/02/25 20:31:18 trhodes Exp $ 34.\" $DragonFly: src/usr.bin/finger/finger.1,v 1.2 2003/06/17 04:29:26 dillon Exp $ 35.\" 36.Dd July 22, 2002 37.Dt FINGER 1 38.Os 39.Sh NAME 40.Nm finger 41.Nd user information lookup program 42.Sh SYNOPSIS 43.Nm 44.Op Fl 46glmpshoT 45.Op Ar user ...\& 46.Op Ar user@host ...\& 47.Sh DESCRIPTION 48The 49.Nm 50utility displays information about the system users. 51.Pp 52Options are: 53.Bl -tag -width indent 54.It Fl 4 55Forces 56.Nm 57to use IPv4 addresses only. 58.It Fl 6 59Forces 60.Nm 61to use IPv6 addresses only. 62.It Fl s 63Display the user's login name, real name, terminal name and write 64status (as a ``*'' before the terminal name if write permission is 65denied), idle time, login time, and either office location and office 66phone number, or the remote host. 67If 68.Fl o 69is given, the office location and office phone number is printed 70(the default). 71If 72.Fl h 73is given, the remote host is printed instead. 74.Pp 75Idle time is in minutes if it is a single integer, hours and minutes 76if a ``:'' is present, or days if a ``d'' is present. 77If it is an 78.Dq * , 79the login time indicates the time of last login. 80Login time is displayed as the day name if less than 6 days, else month, day; 81hours and minutes, unless more than six months ago, in which case the year 82is displayed rather than the hours and minutes. 83.Pp 84Unknown devices as well as nonexistent idle and login times are 85displayed as single asterisks. 86.It Fl h 87When used in conjunction with the 88.Fl s 89option, the name of the remote host is displayed instead of the office 90location and office phone. 91.It Fl o 92When used in conjunction with the 93.Fl s 94option, the office location and office phone information is displayed 95instead of the name of the remote host. 96.It Fl g 97This option restricts the gecos output to only the users' real 98name. It also has the side-effect of restricting the output 99of the remote host when used in conjunction with the 100.Fl h 101option. 102.It Fl l 103Produce a multi-line format displaying all of the information 104described for the 105.Fl s 106option as well as the user's home directory, home phone number, login 107shell, mail status, and the contents of the files 108.Pa .forward , 109.Pa .plan , 110.Pa .project 111and 112.Pa .pubkey 113from the user's home directory. 114.Pp 115If idle time is at least a minute and less than a day, it is 116presented in the form ``hh:mm''. 117Idle times greater than a day are presented as ``d day[s]hh:mm''. 118.Pp 119Phone numbers specified as eleven digits are printed as ``+N-NNN-NNN-NNNN''. 120Numbers specified as ten or seven digits are printed as the appropriate 121subset of that string. 122Numbers specified as five digits are printed as ``xN-NNNN''. 123Numbers specified as four digits are printed as ``xNNNN''. 124.Pp 125If write permission is denied to the device, the phrase ``(messages off)'' 126is appended to the line containing the device name. 127One entry per user is displayed with the 128.Fl l 129option; if a user is logged on multiple times, terminal information 130is repeated once per login. 131.Pp 132Mail status is shown as ``No Mail.'' if there is no mail at all, ``Mail 133last read DDD MMM ## HH:MM YYYY (TZ)'' if the person has looked at their 134mailbox since new mail arriving, or ``New mail received ...'', ``Unread 135since ...'' if they have new mail. 136.It Fl p 137Prevent 138the 139.Fl l 140option of 141.Nm 142from displaying the contents of the 143.Pa .forward , 144.Pa .plan , 145.Pa .project 146and 147.Pa .pubkey 148files. 149.It Fl m 150Prevent matching of 151.Ar user 152names. 153.Ar User 154is usually a login name; however, matching will also be done on the 155users' real names, unless the 156.Fl m 157option is supplied. 158All name matching performed by 159.Nm 160is case insensitive. 161.It Fl T 162Disable the piggybacking of data on the initial connection request. 163This option is needed to finger hosts with a broken TCP implementation. 164.El 165.Pp 166If no options are specified, 167.Nm 168defaults to the 169.Fl l 170style output if operands are provided, otherwise to the 171.Fl s 172style. 173Note that some fields may be missing, in either format, if information 174is not available for them. 175.Pp 176If no arguments are specified, 177.Nm 178will print an entry for each user currently logged into the system. 179.Pp 180The 181.Nm 182utility may be used to look up users on a remote machine. 183The format is to specify a 184.Ar user 185as 186.Dq Li user@host , 187or 188.Dq Li @host , 189where the default output 190format for the former is the 191.Fl l 192style, and the default output format for the latter is the 193.Fl s 194style. 195The 196.Fl l 197option is the only option that may be passed to a remote machine. 198.Pp 199If the file 200.Pa .nofinger 201exists in the user's home directory, 202.Nm 203behaves as if the user in question does not exist. 204.Pp 205The optional 206.Xr finger.conf 5 207configuration file can be used to specify aliases. 208Since 209.Nm 210is invoked by 211.Xr fingerd 8 , 212aliases will work for both local and network queries. 213.Sh ENVIRONMENT 214The 215.Nm 216utility utilizes the following environment variable, if it exists: 217.Bl -tag -width Fl 218.It Ev FINGER 219This variable may be set with favored options to 220.Nm . 221.El 222.Sh FILES 223.Bl -tag -width /var/log/lastlog -compact 224.It Pa /etc/finger.conf 225alias definition data base 226.It Pa /var/log/lastlog 227last login data base 228.El 229.Sh SEE ALSO 230.Xr chpass 1 , 231.Xr w 1 , 232.Xr who 1 , 233.Xr finger.conf 5 , 234.Xr fingerd 8 235.Rs 236.%A D. Zimmerman 237.%T The Finger User Information Protocol 238.%R RFC 1288 239.%D December, 1991 240.Re 241.Sh HISTORY 242The 243.Nm 244command appeared in 245.Bx 3.0 . 246.Sh BUGS 247The current FINGER protocol RFC requires that the client keep the connection 248fully open until the server closes. This prevents the use of the optimal 249three-packet T/TCP exchange. (Servers which depend on this requirement are 250bogus but have nonetheless been observed in the Internet at large.) 251