1 HOME
 This command procedure will by default set the default directory to
 the user's home directory.  If a parameter is specified it will set
 the default directory to the home directory of the specified
 username.

 Syntax:
          $ HOME [username][.sub_directory]

 The [] indicate optional parameters.

2 Parameters
 username - This parameter is an optional Username.  If no username
    is specified the default directory will be set to your home
    directory.  If a username is specified the default directory will
    be set to the home directory of the specified user. 

    The username may be abbreviated to the first 'n' characters which
    uniquely identifies the desired user's Username.

        $ HOME                ! Go to your own home directory.
        $ HOME JONES          ! Go to JONES's home directory.

 .sub_directory -  If the username is followed by a period (dot) and a
    valid subdirectory path name, the default will be set to the
    specified subdirectory.  If no leading username preceeds the
    period (dot), then the default will be set to the subdirectory in
    the user's own directory structure. 

        $ HOME .MEMOS.STATUS       ! Go your subdirectory 
        $ HOME JONES.PROJECT.CODE  ! Go to JONES's subdirectory
