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UPDATE-DESKTOP-DATABASE(1)  General Commands Manual UPDATE-DESKTOP-DATABASE(1)

NAME
       update-desktop-database - Build cache database of MIME types handled by
       desktop files

SYNOPSIS
       update-desktop-database [-q|--quiet] [-v|--verbose] [DIRECTORY...]

DESCRIPTION
       The update-desktop-database program is a	tool to	build a	cache database
       of the MIME types handled by desktop files.

       The  cache database contains the	list of	MIME types that	can be handled
       by desktop files, as well as, for each MIME type,  a  list  of  desktop
       files that can handle this MIME type. This cache	database ease the work
       of applications that need to find an application	that can open a	 docu-
       ment of a specific MIME type: those applications	will not have to parse
       all the desktop files existing on the system,  and  can	instead	 parse
       this cache database.

       If  no  DIRECTORY is specified as argument, the desktop files that will
       be processed are	the ones installed in $XDG_DATA_DIRS/applications.

       If both the --quiet and --verbose options are used, then	--verbose will
       be ignored.

OPTIONS
       The following options are supported:

       -q, --quiet
	      Do  not  display	any  information about processing and updating
	      progress.

       -v, --verbose
	      Display more information about processing	and updating progress.

NOTES
       If an invalid MIME type is met, it will be ignored and the creation  of
       the cache database will continue.

       The format of the cache database	is a simple desktop entry format, with
       a MIME Cache group, containing one key per MIME type. The key  name  is
       the  MIME  type,	and the	key value is the list of desktop file that can
       handle this MIME	type.

       The order of the	desktop	files found for	a MIME type  is	 not  signifi-
       cant.   Therefore, an external mechanism	must be	used to	determine what
       is the preferred	desktop	file for a MIME	type.

EXAMPLE
       Here is a simple	example	of a cache database:

	       [MIME Cache]
	       application/x-shellscript=gedit.desktop;
	       text/plain=gedit.desktop;gvim.desktop;
	       video/webm=totem.desktop;

       This cache database is created with three desktop files,	each  contain-
       ing a MimeType key:

	       gedit.desktop: MimeType=text/plain;application/x-shellscript;
	       gvim.desktop: MimeType=text/plain;
	       totem.desktop: MimeType=video/webm;

FILES
       $XDG_DATA_DIRS/applications/mimeinfo.cache

	      This  file is the	cache database created by update-desktop-data-
	      base.

BUGS
       If you find bugs	in the update-desktop-database program,	please	report
       these on	https://bugs.freedesktop.org.

				FREEDESKTOP.ORG	    UPDATE-DESKTOP-DATABASE(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | NOTES | EXAMPLE | FILES | BUGS

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