1.\" Copyright (c) 1985, 1991, 1993 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.\" from: @(#)ttys.5 8.1 (Berkeley) 6/4/93 33.\" $FreeBSD: src/libexec/getty/ttys.5,v 1.11.2.3 2001/08/16 10:44:15 ru Exp $ 34.\" $DragonFly: src/libexec/getty/ttys.5,v 1.3 2006/02/17 19:33:31 swildner Exp $ 35.\" " 36.Dd November 17, 1996 37.Dt TTYS 5 38.Os 39.Sh NAME 40.Nm ttys 41.Nd terminal initialization information 42.Sh DESCRIPTION 43The file 44.Nm 45contains information that is used by various routines to initialize 46and control the use of terminal special files. 47This information is read with the 48.Xr getttyent 3 49library routines. 50There is one line in the 51.Nm 52file per special device file. 53Fields are separated by tabs and/or spaces. 54Fields comprised of more than one word should be enclosed in double 55quotes (``"''). 56Blank lines and comments may appear anywhere in the file; comments 57are delimited by hash marks (``#'') and new lines. 58Any unspecified fields will default to null. 59.Pp 60The first field is normally the 61name of the terminal special file as it is found in 62.Pa /dev . 63However, it can be any arbitrary string 64when the associated command is not related to a tty. 65.Pp 66The second field of the file is the command to execute for the line, 67usually 68.Xr getty 8 , 69which initializes and opens the line, setting the speed, waiting for 70a user name and executing the 71.Xr login 1 72program. 73It can be, however, any desired command, for example 74the start up for a window system terminal emulator or some other 75daemon process, and can contain multiple words if quoted. 76.Pp 77The third field is the type of terminal usually connected to that 78tty line, normally the one found in the 79.Xr termcap 5 80data base file. 81The environment variable 82.Ev TERM 83is initialized with the value by 84either 85.Xr getty 8 86or 87.Xr login 1 . 88.Pp 89The remaining fields set flags in the 90.Fa ty_status 91entry (see 92.Xr getttyent 3 ) , 93specify a window system process that 94.Xr init 8 95will maintain for the terminal line, optionally determine the 96type of tty (whether dialin, network or otherwise), 97or specify a tty group 98name that allows the login class database (see 99.Xr login.conf 5 ) 100to refer to many ttys as a group, to selectively allow or 101deny access or enable or disable accounting facilities for 102ttys as a group. 103.Pp 104As flag values, the strings ``on'' and ``off'' specify that 105.Xr init 8 106should (should not) execute the command given in the second field, 107while ``secure'' (if ``on'' is also specified) allows users with a 108uid of 0 to login on 109this line. 110The flag ``dialin'' indicates that a tty entry describes a dialin 111line, and ``network'' indicates that a tty entry provides a 112network connection. 113Either of these strings may also be specified in the terminal type 114field. 115The string ``window='' may be followed by a quoted command 116string which 117.Xr init 8 118will execute 119.Em before 120starting the command specified by the second field. 121.Pp 122The string ``group='' may be followed by a group name comprised of 123alphanumeric characters that can be used by 124.Xr login.conf 5 125to refer to many tty lines as a group to enable or disable access 126and accounting facilities. 127If no group is specified, then the tty becomes a member of the group 128"none". 129For backwards compatibility, the ``group='' should appear last on the 130line, immediately before the optional comment. 131.Pp 132Both the second field and any command specified with ``window='' 133will be split into words and executed using 134.Xr execve 2 . 135Words are separated by any combinations of tabs and spaces. 136Arguments containing whitespace should be enclosed in single quotes 137.Pq Li ' . 138Note that no shell-style globbing or other variable substitution occurs. 139.Sh FILES 140.Bl -tag -width /etc/ttys -compact 141.It Pa /etc/ttys 142.El 143.Sh EXAMPLES 144.Bd -literal 145# root login on console at 1200 baud 146console "/usr/libexec/getty std.1200" vt100 on secure 147# dialup at 1200 baud, no root logins 148ttyd0 "/usr/libexec/getty d1200" dialup on group=dialup # 555-1234 149# Mike's terminal: hp2621 150ttyh0 "/usr/libexec/getty std.9600" hp2621-nl on group=dialup # 457 Evans 151# John's terminal: vt100 152ttyh1 "/usr/libexec/getty std.9600" vt100 on group=dialup # 459 Evans 153# terminal emulate/window system 154ttyv0 "/usr/new/xterm -L :0" vs100 on window="/usr/new/Xvs100 0" 155# Network pseudo ttys -- don't enable getty 156ttyp0 none network group=pty 157ttyp1 none network off group=pty 158.Ed 159.Sh SEE ALSO 160.Xr login 1 , 161.Xr getttyent 3 , 162.Xr ttyslot 3 , 163.Xr gettytab 5 , 164.Xr login.conf 5 , 165.Xr termcap 5 , 166.Xr getty 8 , 167.Xr init 8 168.\".Xr init 8 , 169.\".Xr ttyflags 8 170.Sh HISTORY 171A 172.Nm 173file appeared in 174.At v6 . 175