VMS Help INSTALL, PURGE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Deletes all known file entries for images installed without the
    /NOPURGE qualifier.

    Requires the CMKRNL privilege. Also requires the SYSGBL privilege
    to create system global sections and the PRMGBL privilege to
    create permanent global sections.

    Format

      PURGE

1 - Parameters

    None.

2 - Description

    The PURGE command deletes all known file entries for images
    installed without the /NOPURGE qualifier.

    If a process is accessing global sections when the PURGE command
    is entered, the global sections are deleted only after the
    operation initiated by the process completes. However, once the
    command is entered, no additional processes can access the global
    sections because they are marked for deletion.

3 - Example

  INSTALL> PURGE

      The command in this example deletes all images except those
      installed with the /NOPURGE qualifier. The image files remain
      unaffected. Writable global sections are written back to disk
      upon their removal as known images.