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 August 1, 1997 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 lmpshoT 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 flag 53.It Fl s 54Display the user's login name, real name, terminal name and write 55status (as a ``*'' before the terminal name if write permission is 56denied), idle time, login time, and either office location and office 57phone number, or the remote host. 58If 59.Fl o 60is given, the office location and office phone number is printed 61(the default). 62If 63.Fl h 64is given, the remote host is printed instead. 65.Pp 66Idle time is in minutes if it is a single integer, hours and minutes 67if a ``:'' is present, or days if a ``d'' is present. 68If it is an 69.Dq * , 70the login time indicates the time of last login. 71Login time is displayed as the day name if less than 6 days, else month, day; 72hours and minutes, unless more than six months ago, in which case the year 73is displayed rather than the hours and minutes. 74.Pp 75Unknown devices as well as nonexistent idle and login times are 76displayed as single asterisks. 77.Pp 78.It Fl h 79When used in conjunction with the 80.Fl s 81option, the name of the remote host is displayed instead of the office 82location and office phone. 83.Pp 84.It Fl o 85When used in conjunction with the 86.Fl s 87option, the office location and office phone information is displayed 88instead of the name of the remote host. 89.Pp 90.It Fl l 91Produce a multi-line format displaying all of the information 92described for the 93.Fl s 94option as well as the user's home directory, home phone number, login 95shell, mail status, and the contents of the files 96.Dq Pa .forward , 97.Dq Pa .plan , 98.Dq Pa .project 99and 100.Dq Pa .pubkey 101from the user's home directory. 102.Pp 103If idle time is at least a minute and less than a day, it is 104presented in the form ``hh:mm''. 105Idle times greater than a day are presented as ``d day[s]hh:mm''. 106.Pp 107Phone numbers specified as eleven digits are printed as ``+N-NNN-NNN-NNNN''. 108Numbers specified as ten or seven digits are printed as the appropriate 109subset of that string. 110Numbers specified as five digits are printed as ``xN-NNNN''. 111Numbers specified as four digits are printed as ``xNNNN''. 112.Pp 113If write permission is denied to the device, the phrase ``(messages off)'' 114is appended to the line containing the device name. 115One entry per user is displayed with the 116.Fl l 117option; if a user is logged on multiple times, terminal information 118is repeated once per login. 119.Pp 120Mail status is shown as ``No Mail.'' if there is no mail at all, ``Mail 121last read DDD MMM ## HH:MM YYYY (TZ)'' if the person has looked at their 122mailbox since new mail arriving, or ``New mail received ...'', ``Unread 123since ...'' if they have new mail. 124.Pp 125.It Fl p 126Prevent 127the 128.Fl l 129option of 130.Nm 131from displaying the contents of the 132.Dq Pa .forward , 133.Dq Pa .plan , 134.Dq Pa .project 135and 136.Dq Pa .pubkey 137files. 138.It Fl m 139Prevent matching of 140.Ar user 141names. 142.Ar User 143is usually a login name; however, matching will also be done on the 144users' real names, unless the 145.Fl m 146option is supplied. 147All name matching performed by 148.Nm 149is case insensitive. 150.Pp 151.It Fl T 152Disable the piggybacking of data on the initial connection request. 153This option is needed to finger hosts with a broken TCP implementation. 154.El 155.Pp 156If no options are specified, 157.Nm 158defaults to the 159.Fl l 160style output if operands are provided, otherwise to the 161.Fl s 162style. 163Note that some fields may be missing, in either format, if information 164is not available for them. 165.Pp 166If no arguments are specified, 167.Nm 168will print an entry for each user currently logged into the system. 169.Pp 170The 171.Nm 172utility may be used to look up users on a remote machine. 173The format is to specify a 174.Ar user 175as 176.Dq Li user@host , 177or 178.Dq Li @host , 179where the default output 180format for the former is the 181.Fl l 182style, and the default output format for the latter is the 183.Fl s 184style. 185The 186.Fl l 187option is the only option that may be passed to a remote machine. 188.Pp 189If the file 190.Dq Pa .nofinger 191exists in the user's home directory, 192.Nm 193behaves as if the user in question does not exist. 194.Pp 195The optional 196.Xr finger.conf 5 197configuration file can be used to specify aliases. 198Since 199.Xr finger 1 200is invoked by 201.Xr fingerd 8 , 202aliases will work for both local and network queries. 203.Sh ENVIRONMENT 204The 205.Nm 206utility utilizes the following environment variable, if it exists: 207.Bl -tag -width Fl 208.It Ev FINGER 209This variable may be set with favored options to 210.Nm . 211.El 212.Sh FILES 213.Bl -tag -width /var/log/lastlog -compact 214.It Pa /etc/finger.conf 215alias definition data base 216.It Pa /var/log/lastlog 217last login data base 218.El 219.Sh SEE ALSO 220.Xr chpass 1 , 221.Xr w 1 , 222.Xr who 1 , 223.Xr finger.conf 5 , 224.Xr fingerd 8 225.Rs 226.%A D. Zimmerman 227.%T The Finger User Information Protocol 228.%R RFC 1288 229.%D December, 1991 230.Re 231.Sh HISTORY 232The 233.Nm 234command appeared in 235.Bx 3.0 . 236.Sh BUGS 237The current FINGER protocol RFC requires that the client keep the connection 238fully open until the server closes. This prevents the use of the optimal 239three-packet T/TCP exchange. (Servers which depend on this requirement are 240bogus but have nonetheless been observed in the Internet at large.) 241