cd Command
  
  
  Purpose
  
  Changes the current directory.
  
   Syntax
  
  cd [ Directory ]
  
  Description
  
  The cd command moves you from your present directory to another
  directory.    You must have execute (search)  permission  in  the
  specified directory.
  
  If you do not specify a Directory parameter, the cd command moves
  you to your login directory ($HOME in the ksh and bsh
  environments, or $home in the csh environment).  If the specified
  directory name is a full path name, it becomes the current direc-
  tory.   A full path name begins with a / (slash) indicating  root
  directory, a . (dot) indicating current directory, or a .. (dot-
  dot) indicating parent directory.  If the directory name is not a
  full path name, the cd command searches for it relative to one of
  the paths specified by the $CDPATH shell variable (or $cdpath csh
  variable).  This variable has the same syntax as, and similar se-
  mantics to, the $PATH shell variable (or $path csh variable).

  Examples

  1.    To change to your home directory, enter:

  cd

  2.    To change to an arbitrary directory, enter:

  cd /usr/include

  This changes the current directory to /usr/include.

  3.    To go down one level of the directory tree, enter:

  cd sys

  If the current directory is /usr/include and it contains a sub-
  directory named sys, then /usr/include/sys becomes the current
  directory.

  4.    To go up one level of the directory tree, enter:

  cd ..

  The special file name, .. (dot-dot), refers to the directory im-
  mediately above the current directory.

  Implementation Specifics

  This command is part of Base Operating System (BOS) Runtime.

  Suggested Reading



  Prerequisite Information

   Files and Directories Overview.

   Understanding Directories describes the structure and charac-
   teristics of directories in the file system.

   Shells Overview describes shells, the different types, and how
   they affect the way commands are interpreted.

   Working With Directories introduces the commands that control
   directories.

  Related Information

  The  bsh command,  csh command,  pwd command,  ksh command.

  The  chdir subroutine.