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99 lines
3.4 KiB
Groff
99 lines
3.4 KiB
Groff
.\" Copyright (c) 1980, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Institute of Electrical and Electronics Engineers, Inc.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)cd.1 8.1 (Berkeley) 6/5/93
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.\" $Id$
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.\"
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.Dd June 5, 1993
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.Dt CD 1
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.Os BSD 4
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.Sh NAME
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.Nm cd
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.Nd change working directory
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.Sh SYNOPSIS
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.Nm cd
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.Ar directory
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.Sh DESCRIPTION
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.Ar Directory
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is an absolute or relative pathname which becomes the new working
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directory.
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The interpretation of a relative pathname by cd depends on the CDPATH
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environment variable (see below).
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.Sh ENVIRONMENT
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The following environment variables affect the execution of cd:
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.Pp
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.Bl -tag -width indent
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.It Ev CDPATH
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If the
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.Ar directory
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operand does not begin with a slash (/) character, and the first
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component is not dot (.) or dot-dot (..),
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.Nm cd
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searches for the directory relative to each directory named in the
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.Ev CDPATH
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variable, in the order listed.
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The new working directory is set to the first matching directory found.
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An empty string in place of a directory pathname represents the current
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directory.
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If the new working directory was derived from
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.Ev CDPATH ,
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it will be printed to the standard output.
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.It Ev HOME
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If
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.Nm cd
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is invoked without arguments and the
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.Ev HOME
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environment variable exists and contains a directory name, that directory
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becomes the new working directory.
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.El
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.Pp
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See
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.Xr csh 1
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for more information on environment variables.
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.Pp
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The
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.Nm cd
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utility exits 0 on success, and >0 if an error occurs.
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.Sh SEE ALSO
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.Xr csh 1 ,
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.Xr pwd 1 ,
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.Xr sh 1 ,
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.Xr chdir 2
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.Sh STANDARDS
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The
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.Nm cd
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command is expected to be
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.St -p1003.2
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compatible.
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