HP 3000 Manuals

New Features of MPE/iX: Using the Hierarchical File System

Deleting Directories 

Use the PURGEDIR command to delete a hierarchical directory.  MPE-Escaped
naming rules apply.

You cannot use PURGEDIR to delete an account, an MPE group, the root
directory, or a file.  You will receive an error message if you try.
Although you can specify (.)  and (..)  in the PURGEDIR command, you
cannot delete these directories.

You must have traverse directory entries (TD) access to the directory you
want to delete and any other directories referenced in the pathname.  You
must have delete directory entries (DD) access to the parent directory of
the directory you are deleting.

Deleting empty directories 

To delete a directory that is empty:

   *   Use the PURGEDIR command.  For example:

            :purgedir /MYACCT/MYGRP/dir1 
            Directory "/MYACCT/MYGRP/dir1" to be purged? (Yes/No)y

       This example deletes dir1.

If the directory that you are trying to delete is not empty, you receive
an error message and it is not deleted.  In the following example,
dirwithfiles contains files.
_____________________________________________________________
|                                                           |
|                                                           |
|      :purgedir /MYACCT/MYGRP/dirwithfiles                 |
|      Directory "/MYACCT/MYGRP/dirwithfiles" to be purged? |
|      (Yes/No)y                                            |
|      Directory is not empty. No PURGEDIR done.            |
|      Consider using the ;TREE option. (CIERR 994)         |
|                                                           |
_____________________________________________________________

            

Deleting directories that are not empty 

To delete a directory that is not empty:

   *   Use the PURGEDIR command with the TREE option, or specify a
       pathname ending in /.  For example:

            :purgedir /MYACCT/MYGRP/dir1 ;TREE 

       or

            :purgedir /MYACCT/MYGRP/dir1/ 

       Both of these examples perform the same action:  they delete dir1
       and any files or directories in dir1.

       You must have TD and DD access to dir1 and any directories in it
       to delete them.  Specifying a slash at the end of a pathname or
       using the TREE option makes this a recursive deletion that starts
       from the bottom of the tree and works its way up the tree.

       If any of the files in the directory (or directories) are open
       when you execute the command, you receive an IN USE warning
       message.  The directory that contains the open file and the open
       files are not deleted.  All other files and directories are
       deleted.

Deleting using wildcards 

To delete a directory and the files or directories it contains using
wildcards:

   *   Use the PURGEDIR command.  For example:

            :purgedir /MYACCT/MYGRP/@ 

       This example deletes all directories rooted to /MYACCT/MYGRP.

       To delete all empty directories under the CWD (Current Working
       Directory) with TMP in their name:

            :purgedir @TMP@ 

       To delete all directories under the CWD with names beginning with
       TMP, and all objects below these directories:

            :purgedir TMP@; TREE 

       To delete all directories under the CWD with names ending with
       TMP, and all objects below these directories:

            :purgedir ./@TMP/ 

       When wildcards are specified with dir_name, then RD access is
       required to the parent directory of each wildcard component.  If
       the purge is multilevel, then TD, RD, and DD accesses are
       necessary to each directory below dir_name.

MPE/iX 5.0 Documentation