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 1.3 2004/07/16 19:07:08 hmp 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. 99It also has the side-effect of restricting the output 100of the remote host when used in conjunction with the 101.Fl h 102option. 103.It Fl l 104Produce a multi-line format displaying all of the information 105described for the 106.Fl s 107option as well as the user's home directory, home phone number, login 108shell, mail status, and the contents of the files 109.Pa .forward , 110.Pa .plan , 111.Pa .project 112and 113.Pa .pubkey 114from the user's home directory. 115.Pp 116If idle time is at least a minute and less than a day, it is 117presented in the form ``hh:mm''. 118Idle times greater than a day are presented as ``d day[s]hh:mm''. 119.Pp 120Phone numbers specified as eleven digits are printed as ``+N-NNN-NNN-NNNN''. 121Numbers specified as ten or seven digits are printed as the appropriate 122subset of that string. 123Numbers specified as five digits are printed as ``xN-NNNN''. 124Numbers specified as four digits are printed as ``xNNNN''. 125.Pp 126If write permission is denied to the device, the phrase ``(messages off)'' 127is appended to the line containing the device name. 128One entry per user is displayed with the 129.Fl l 130option; if a user is logged on multiple times, terminal information 131is repeated once per login. 132.Pp 133Mail status is shown as ``No Mail.'' if there is no mail at all, ``Mail 134last read DDD MMM ## HH:MM YYYY (TZ)'' if the person has looked at their 135mailbox since new mail arriving, or ``New mail received ...'', ``Unread 136since ...'' if they have new mail. 137.It Fl p 138Prevent 139the 140.Fl l 141option of 142.Nm 143from displaying the contents of the 144.Pa .forward , 145.Pa .plan , 146.Pa .project 147and 148.Pa .pubkey 149files. 150.It Fl m 151Prevent matching of 152.Ar user 153names. 154.Ar User 155is usually a login name; however, matching will also be done on the 156users' real names, unless the 157.Fl m 158option is supplied. 159All name matching performed by 160.Nm 161is case insensitive. 162.It Fl T 163Disable the piggybacking of data on the initial connection request. 164This option is needed to finger hosts with a broken TCP implementation. 165.El 166.Pp 167If no options are specified, 168.Nm 169defaults to the 170.Fl l 171style output if operands are provided, otherwise to the 172.Fl s 173style. 174Note that some fields may be missing, in either format, if information 175is not available for them. 176.Pp 177If no arguments are specified, 178.Nm 179will print an entry for each user currently logged into the system. 180.Pp 181The 182.Nm 183utility may be used to look up users on a remote machine. 184The format is to specify a 185.Ar user 186as 187.Dq Li user@host , 188or 189.Dq Li @host , 190where the default output 191format for the former is the 192.Fl l 193style, and the default output format for the latter is the 194.Fl s 195style. 196The 197.Fl l 198option is the only option that may be passed to a remote machine. 199.Pp 200If the file 201.Pa .nofinger 202exists in the user's home directory, 203.Nm 204behaves as if the user in question does not exist. 205.Pp 206The optional 207.Xr finger.conf 5 208configuration file can be used to specify aliases. 209Since 210.Nm 211is invoked by 212.Xr fingerd 8 , 213aliases will work for both local and network queries. 214.Sh ENVIRONMENT 215The 216.Nm 217utility utilizes the following environment variable, if it exists: 218.Bl -tag -width Fl 219.It Ev FINGER 220This variable may be set with favored options to 221.Nm . 222.El 223.Sh FILES 224.Bl -tag -width /var/log/lastlog -compact 225.It Pa /etc/finger.conf 226alias definition data base 227.It Pa /var/log/lastlog 228last login data base 229.El 230.Sh SEE ALSO 231.Xr chpass 1 , 232.Xr w 1 , 233.Xr who 1 , 234.Xr finger.conf 5 , 235.Xr fingerd 8 236.Rs 237.%A D. Zimmerman 238.%T The Finger User Information Protocol 239.%R RFC 1288 240.%D December, 1991 241.Re 242.Sh HISTORY 243The 244.Nm 245command appeared in 246.Bx 3.0 . 247.Sh BUGS 248The current FINGER protocol RFC requires that the client keep the connection 249fully open until the server closes. 250This prevents the use of the optimal 251three-packet T/TCP exchange. 252(Servers which depend on this requirement are 253bogus but have nonetheless been observed in the Internet at large.) 254