When you index a file system, Verity Spider reads filenames and evaluates your MIME type criteria against an internal, compiled list of known MIME types and associated file extensions. You cannot edit this list. However, you can use the -mimemap option to create a custom MIME type mapping.

When you encounter MIME types being dropped, check whether Verity Spider recognizes that particular MIME type. For more information, see the table, Known MIME types for file system indexing.

You can examine the indexing job's log files for indications that files are being skipped due to MIME types. For example, a typical ASCII file you might want indexed is a log file (filename.log). Since Verity Spider does not understand that files with .LOG extensions are ASCII text, of MIME type text/plain, you will see in the indexing job log file that .LOG files are skipped because of MIME type, even if you use the following:

-mimeinclude 'text/*'.Setting MIME Types

Indexing unknown MIME types

Whenever you find MIME types being dropped, or you know you will be indexing files whose extensions are not known to Verity Spider by default, use the -mimemap option to point to a file that contains your own custom mappings for file extensions and MIME types.

You can also use the regular expression '*/*' for your MIME type criteria; for example:

-mimeinclude '*/*'

On either platform, you must include single-quotation marks for values that include wildcard characters.

Also use inclusion and exclusion criteria to finely control what is indexed, as follows:

1. If your list of file types to index is rather long, use exclusion criteria (-exclude, -indexclude, -mimeexclude, or -indmimeexclude) to exclude extensions you know you do not want to index; for example:

-exclude '*.exe' '*.com'

1. If the list of file types you want to index is relatively small, use inclusion criteria (-include, -indinclude, -mimeinclude, or -indmimeinclude) to specify them; for example:

-include '*.txt' '*.1st' '*.log' .Setting MIME Types

Known MIME types for file system indexing

The following table lists the MIME types that Verity Spider recognizes when indexing file systems: