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Annotation of 43BSDReno/bin/sh/cd.1, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980, 1990 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"     @(#)cd.1       6.3 (Berkeley) 7/24/90
        !            19: .\"
        !            20: .Dd July 24, 1990
        !            21: .Dt CD 1
        !            22: .Os BSD 4
        !            23: .Sh NAME
        !            24: .Nm cd
        !            25: .Nd change working directory
        !            26: .Sh SYNOPSIS
        !            27: .Nm cd
        !            28: .Ar directory
        !            29: .Sh DESCRIPTION
        !            30: The cd utility changes the working directory
        !            31: to
        !            32: .Ar directory .
        !            33: .Pp
        !            34: The
        !            35: .Ar directory
        !            36: is an absolute or relative pathname
        !            37: which becomes the new working directory.
        !            38: The
        !            39: interpretation of a relative pathname by cd depends
        !            40: on the CDPATH environment variable (see below).
        !            41: .Pp
        !            42: .Sh ENVIRONMENT
        !            43: The following environment variables affect the execution of
        !            44: cd:
        !            45: .Pp
        !            46: .Tw Fl
        !            47: .Tp Ev HOME
        !            48: If
        !            49: .Nm cd
        !            50: is
        !            51: invoked without arguments, the
        !            52: .Ev HOME
        !            53: environment variable is checked for a default
        !            54: directory name. If
        !            55: .Ev HOME
        !            56: exists and contains
        !            57: a directory name,
        !            58: that directory becomes the new working directory.
        !            59: .Tp Ev CDPATH
        !            60: If the
        !            61: .Ar directory
        !            62: operand does not
        !            63: begin with a slash (/) character, and the first
        !            64: component is not dot (.) or dot-dot (..),
        !            65: .Nm cd
        !            66: searches for
        !            67: the directory relative to each directory named in the
        !            68: .Ev CDPATH
        !            69: variable, in the order listed.
        !            70: The new
        !            71: working directory is set to the first matching
        !            72: directory found.
        !            73: An empty string in place of a
        !            74: directory pathname represents the current directory.
        !            75: .Nm Cd
        !            76: will print the pathname of the new working directory if it
        !            77: was an element of
        !            78: .Ev CDPATH .
        !            79: See
        !            80: .Xr csh 1
        !            81: for info on environment variables.
        !            82: .Tp
        !            83: .Pp
        !            84: The
        !            85: .Nm cd
        !            86: utility exits 0 on success, and >0 if an error occurs.
        !            87: .Sh SEE ALSO
        !            88: .Xr csh 1 ,
        !            89: .Xr sh 1 ,
        !            90: .Xr pwd 1 ,
        !            91: .Xr chdir 2
        !            92: .Sh STANDARDS
        !            93: The
        !            94: .Nm cd
        !            95: function is expected to be POSIX 1003.2 compatible.

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