Linux Commands Examples

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create or update entry in SGML catalog file


update-catalog [options] --add centralized_catalog ordinary_catalog

update-catalog [options] --remove centralized_catalog ordinary_catalog

update-catalog [options] --update-super

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update-catalog inserts, updates or removes entries in the SGML centralized catalogs located in /etc/sgml. To change the SGML super catalog located in /etc/sgml/catalog modify the directory contents of /etc/sgml to contain new files or symbolic links having a .cat extension or remove (or move) existing centralized catalogs and regenerate the super catalog using the --update-super option. See section SUPER CATALOG for details on the generation process.



Adds an entry for the ordinary_catalog in the centralized_catalog.


Removes the entry for the ordinary_catalog from the centralized_catalog.


Regenerates the SGML super catalog from the contents of the /etc/sgml directory. See section SUPER CATALOG for details on the super catalog generation.


Prevents the usual diagnostic output.


Prevents the update of the catalog and writes the resulting SGML catalog to standard output.


Displays the version information and exits.


Display the usage information and exits.


Copyright © 2001-2004 Ardo van Rangelrooij Copyright © 2012 Helmut Grohne

This is free software; see the GNU General Public Licence version 2 or later for copying conditions. There is no warranty.

super catalog

The super-catalog located in /etc/sgml/catalog cannot be directly modified. It is generated by the update-catalog --update-super command. The generation considers files in the /etc/sgml directory that have a .cat extension. For instance files ending in .old or .disabled are not considered. Before adding a catalog to the super catalog it is parsed and verified in order to not corrupt the super catalog. All referenced catalogs are verified to actually exist. If the check fails, a message is printed and the complete catalog is ignored. This check ensures that a catalog from a package, which is removed but not purged, is removed from the super catalog.


Ardo van Rangelrooij <ardo[:at:]debian[:dot:]org>

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