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#

#   Dos9 Manual pages, The Dos9 project

#   Copyright (C) 2012-2014  Romain Garbi (DarkBatcher)

#

#   This program is free software: you can redistribute it and/or modify

#   it under the terms of the GNU General Public License as published by

#   the Free Software Foundation, either version 3 of the License, or

#   (at your option) any later version.

#

#   This program is distributed in the hope that it will be useful,

#   but WITHOUT ANY WARRANTY; without even the implied warranty of

#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

#   GNU General Public License for more details.

#

#   You should have received a copy of the GNU General Public License

#   along with this program.  If not, see <http://www.gnu.org/licenses/>.

#

{{CD, CHDIR commands and %CD% Variable}}



	   The {CD} command changes or shows the current directory of {dos9|Dos9}

       command prompt.



       The {%CD%} variable expands to the current directory of {dos9|Dos9}

	   command prompt.



{{Synopsis}}



${CD  [[/d] path]

CHDIR [[/d] path]}



	Changes or displays the current working working directory.

	

	- {path} : A path to the new working directory.

	

	- {/d} : Forces changing current drive on {Windows}. This switch

	has no effect on {UNIX}-like platforms since their file system

	trees always share a unique root {/}. 



	If neither {path} nor {/d} is specified, then {CD} will display

	the path to the current working directory.



	On {Windows} (since version {2014.0.9b}), the {CD} command behaves

	allmost the same way as {cmd}'s {CD} does, supporting the

	possibility to have several current working directories depending

	on the {current drive}. The {CD} command behaviour is the following :

	

	- If {path} only consists of a drive letter (ie. something like "A:"),

	then {CD} enables the drive referred to by {path} and use the

	current working directory associated with this drive. Such a drive

	change be abbreviated by just typing {X:} at the prompt.



	- If {path} is absolute (ie. It mentions the drive letter plus

	sub directories), then, the current working directory associated

	with the drive is replaced by {path}. If {/d} is not specified,

	the {CD} command will not modify current directory, unless {path}

	refers to the current drive.



	- If {path} is relative, then {CD} changes the current working

	directory to {path}. This is the only syntax of {CD} that is

	guaranteed to be portable across platforms.



{{Variables}}



	${%CD%}



	Expands to the current working directory. This variable is read-only

	and can not be modified using {set|SET}. Depending on {dos9|Dos9}

	version, the undocumented {%__CD__%} variable defined by {cmd}

	might as well be defined by {dos9}, however its use is strongly

	discouraged.



	${%=X:%}



	Expands to the current working directory associated with drive {X:}.

	This undocumented variables are also defined by {cmd.exe}, even

	though they are undocumented. However, this family of variable is

	not defined on {UNIX}-like OSes.



{{Bogus}}



	On {Windows}, {CD} may actually change current directory to a path

	that does not exist if {path} is made of dots. Indeed, internal

	windows routines fail to identify such folders as non-existing, thus

	allowing {Dos9} to change directory. For example:



${CD ...}



{{Compatibility}}



	Fully compatible with {cmd.exe}.



	Available since version {0.4}



{{See also}}



	{spec/var|Variable}, {spec/index|Specifications Index},

	{commands|Command list}