Interaction between rm -rf and Directory Permissions

• A Perl module to help us run test program: CreateSubdirs

  • Manually creates a directory underneath /tmp

  • Creates 8 directories underneath that subdirectory; then

  • Changes the permissions on those third-level subdirectories to each of:

        0000    # user has no permissions
        0100    # user has execute-only
        0200    # user has write-only
        0300    # user has write and execute
        0400    # user has read-only
        0500    # user has read and execute
        0600    # user has read and write
        0700    # user has read, write and execute

• create_subdirs() function runs sanity tests and returns a list of all the third-level subdirectories created.

        @altered = CreateSubdirs::create_subdirs($tdir, $sdir, 'no_create_file');