1.\" $NetBSD: cd.1,v 1.5 2003/08/07 10:31:00 agc Exp $ 2.\" 3.\" Copyright (c) 1980, 1990, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Institute of Electrical and Electronics Engineers, Inc. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" @(#)cd.1 8.1 (Berkeley) 6/5/93 34.\" 35.Dd June 5, 1993 36.Dt CD 1 37.Os 38.Sh NAME 39.Nm cd 40.Nd change working directory 41.Sh SYNOPSIS 42.Nm cd 43.Ar directory 44.Sh DESCRIPTION 45.Ar Directory 46is an absolute or relative pathname which becomes the new working 47directory. 48The interpretation of a relative pathname by cd depends on the CDPATH 49environment variable (see below). 50.Sh ENVIRONMENT 51The following environment variables affect the execution of cd: 52.Pp 53.Bl -tag -width indent 54.It Ev CDPATH 55If the 56.Ar directory 57operand does not begin with a slash (/) character, and the first 58component is not dot (.) or dot-dot (..), 59.Nm cd 60searches for the directory relative to each directory named in the 61.Ev CDPATH 62variable, in the order listed. 63The new working directory is set to the first matching directory found. 64An empty string in place of a directory pathname represents the current 65directory. 66If the new working directory was derived from 67.Ev CDPATH , 68it will be printed to the standard output. 69.It Ev HOME 70If 71.Nm cd 72is invoked without arguments and the 73.Ev HOME 74environment variable exists and contains a directory name, that directory 75becomes the new working directory. 76.El 77.Pp 78See 79.Xr csh 1 80for more information on environment variables. 81.Pp 82The 83.Nm cd 84utility exits 0 on success, and \*[Gt]0 if an error occurs. 85.Sh SEE ALSO 86.Xr csh 1 , 87.Xr pwd 1 , 88.Xr sh 1 , 89.Xr chdir 2 90.Sh STANDARDS 91The 92.Nm cd 93command is expected to be 94.St -p1003.2 95compatible. 96