cd man page on HP-UX

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cd(1)									 cd(1)

       cd - change working directory


       If  directory is not specified, the value of shell parameter is used as
       the new working directory.  If  directory  specifies  a	complete  path
       starting	 with or directory becomes the new working directory.  If nei‐
       ther case applies, tries to find the designated directory  relative  to
       one  of the paths specified by the shell variable.  has the same syntax
       as, and similar semantics to, the shell variable.   must	 have  execute
       (search) permission in directory.

       exists  only  as a shell built-in command because a new process is cre‐
       ated whenever a command is executed, making useless if written and pro‐
       cessed  as a normal system command.  Moreover, different shells provide
       different implementations of as a built-in  utility.   Features	of  as
       described  here may not be supported by all the shells.	Refer to indi‐
       vidual shell manual entries for differences.

       If is called in a subshell or a separate utility execution  environment
       such as:

       (which  invokes	on accessible directories) does not affect the current
       directory of the caller's environment.  Another usage of	 as  a	stand-
       alone command is to obtain the exit status of the command.

   International Code Set Support
       Single- and multi-byte character code sets are supported.

   Environment Variables
       The following environment variables affect the execution of

       The name of the home directory,
			   used when no directory operand is specified.

       A colon-separated list of pathnames that refer to directories.
			   If  the  directory  operand	does  not begin with a
			   slash character, and the first component is not dot
			   or dot-dot, searches for directory relative to each
			   directory named  in	the  variable,	in  the	 order
			   listed.   The  new  working directory is set to the
			   first matching directory found.  An empty string in
			   place  of  a directory pathname represents the cur‐
			   rent directory.  If is not set, it is treated as if
			   it was an empty string.

       Change the current working directory to the directory from any location
       in the file system:

       Change to new current working directory residing in the current	direc‐

       Change  to  directory residing in the current directory's parent direc‐

       Change to the directory whose absolute pathname is

       Change to the directory relative to home directory:

       Upon completion, exits with one of the following values:

       The directory was successfully changed.
       An error occurred.  The working directory remains unchanged.

       csh(1), pwd(1), ksh(1), sh-posix(1), sh(1), chdir(2).


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