1.\" $NetBSD: cd.1,v 1.3 1999/03/15 08:22:21 garbled 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. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the University of 20.\" California, Berkeley and its contributors. 21.\" 4. Neither the name of the University nor the names of its contributors 22.\" may be used to endorse or promote products derived from this software 23.\" without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35.\" SUCH DAMAGE. 36.\" 37.\" @(#)cd.1 8.1 (Berkeley) 6/5/93 38.\" 39.Dd June 5, 1993 40.Dt CD 1 41.Os 42.Sh NAME 43.Nm cd 44.Nd change working directory 45.Sh SYNOPSIS 46.Nm cd 47.Ar directory 48.Sh DESCRIPTION 49.Ar Directory 50is an absolute or relative pathname which becomes the new working 51directory. 52The interpretation of a relative pathname by cd depends on the CDPATH 53environment variable (see below). 54.Sh ENVIRONMENT 55The following environment variables affect the execution of cd: 56.Pp 57.Bl -tag -width indent 58.It Ev CDPATH 59If the 60.Ar directory 61operand does not begin with a slash (/) character, and the first 62component is not dot (.) or dot-dot (..), 63.Nm cd 64searches for the directory relative to each directory named in the 65.Ev CDPATH 66variable, in the order listed. 67The new working directory is set to the first matching directory found. 68An empty string in place of a directory pathname represents the current 69directory. 70If the new working directory was derived from 71.Ev CDPATH , 72it will be printed to the standard output. 73.It Ev HOME 74If 75.Nm cd 76is invoked without arguments and the 77.Ev HOME 78environment variable exists and contains a directory name, that directory 79becomes the new working directory. 80.El 81.Pp 82See 83.Xr csh 1 84for more information on environment variables. 85.Pp 86The 87.Nm cd 88utility exits 0 on success, and >0 if an error occurs. 89.Sh SEE ALSO 90.Xr csh 1 , 91.Xr pwd 1 , 92.Xr sh 1 , 93.Xr chdir 2 94.Sh STANDARDS 95The 96.Nm cd 97command is expected to be 98.St -p1003.2 99compatible. 100