CHDIR (CD) 
Displays the name of the current directory or changes the current
directory.
Syntax
    CHDIR [drive:][path]
    CHDIR[..]
    CD [drive:][path]
    CD[..]
To display the current drive letter and directory name, use either of the   
following syntax lines:
    CHDIR
    CD
Parameters
[drive:][path]
    Specifies the drive (if other than the current drive) and directory to
    which you want to change.
 ..
    Specifies that you want to change to the parent directory.
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