1.\" $NetBSD: shells.5,v 1.7 2001/03/16 10:13:17 abs Exp $ 2.\" 3.\" Copyright (c) 1986, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)shells.5 8.1 (Berkeley) 6/5/93 35.\" 36.Dd January 16, 1999 37.Dt SHELLS 5 38.Os 39.Sh NAME 40.Nm shells 41.Nd shell database 42.Sh DESCRIPTION 43The 44.Nm shells 45file contains a list of the shells on the system. 46It can be used in conjunction with the Hesiod domain 47.Sq shells , 48and the 49.Tn NIS 50map 51.Sq shells , 52as controlled by 53.Xr nsswitch.conf 5 . 54.Pp 55For each shell a single line should be present, consisting of the 56shell's path, relative to root. 57.Pp 58A hash 59.Pq Dq \&# 60indicates the beginning of a comment; subsequent 61characters up to the end of the line are not interpreted by the 62routines which search the file. 63Blank lines are also ignored. 64.Sh FILES 65.Bl -tag -width /etc/shells -compact 66.It Pa /etc/shells 67The 68.Nm shells 69file resides in 70.Pa /etc . 71.El 72.Sh SEE ALSO 73.Xr chsh 1 , 74.Xr getusershell 3 , 75.Xr nsswitch.conf 5 76.Sh HISTORY 77The 78.Nm 79file format appeared in 80.Bx 4.3 tahoe . 81.Pp 82The Hesiod and 83.Tn NIS 84support first appeared in 85.Nx 1.4 . 86