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