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NAMExdg-mime - command line tool for querying information about file type handling and adding descriptions for new file typesSYNOPSISxdg-mime query {filetype | default} ... xdg-mime default application mimetype(s) xdg-mime install [--mode mode] [--novendor] mimetypes-file xdg-mime uninstall [--mode mode] mimetypes-file xdg-mime {--help | --manual | --version} DESCRIPTIONThe xdg-mime program can be used to query information about file types and to add descriptions for new file types.COMMANDSqueryReturns information related to file types.
The query option is for use inside a desktop session only. It is not recommended to use xdg-mime query as root. The following queries are supported: query filetype FILE: Returns the file type of FILE in the form of a MIME type. query default mimetype: Returns the default application that the desktop environment uses for opening files of type mimetype. The default application is identified by its *.desktop file. default Ask the desktop environment to make application
the default application for opening files of type mimetype. An
application can be made the default for several file types by specifying
multiple mimetypes.
application is the desktop file id of the application and has the form vendor-name.desktop. application must already be installed in the desktop menu before it can be made the default handler. The application's desktop file must list support for all the MIME types that it wishes to be the default handler for. Requests to make an application a default handler may be subject to system policy or approval by the end-user. xdg-mime query can be used to verify whether an application is the actual default handler for a specific file type. The default option is for use inside a desktop session only. It is not recommended to use xdg-mime default as root. install Adds the file type descriptions provided in
mimetypes-file to the desktop environment. mimetypes-file must
be a XML file that follows the freedesktop.org Shared MIME-info Database
specification and that has a mime-info element as its document root. For each
new file type one or more icons with name type-subtype must be
installed with the xdg-icon-resource command in the mimetypes
context. For example the filetype application/vnd.oasis.opendocument.text
requires an icon named application-vnd.oasis.opendocument.text to be installed
(unless the file type recommends another icon name).
uninstall Removes the file type descriptions provided in
mimetypes-file and previously added with xdg-mime install from
the desktop environment. mimetypes-file must be a XML file that follows
the freedesktop.org Shared MIME-info Database specification and that has a
mime-info element as its document root.
OPTIONS--mode modemode can be user or system. In user
mode the file is (un)installed for the current user only. In system mode the
file is (un)installed for all users on the system. Usually only root is
allowed to install in system mode.
The default is to use system mode when called by root and to use user mode when called by a non-root user. --novendor Normally, xdg-mime checks to ensure that the
mimetypes-file to be installed has a proper vendor prefix. This option
can be used to disable that check.
A vendor prefix consists of alpha characters ([a-zA-Z]) and is terminated with a dash ("-"). Companies and organizations are encouraged to use a word or phrase, preferably the organizations name, for which they hold a trademark as their vendor prefix. The purpose of the vendor prefix is to prevent name conflicts. --help Show command synopsis.
--manual Show this manual page.
--version Show the xdg-utils version information.
ENVIRONMENT VARIABLESxdg-mime honours the following environment variables:XDG_UTILS_DEBUG_LEVEL Setting this environment variable to a non-zero numerical
value makes xdg-mime do more verbose reporting on stderr. Setting a higher
value increases the verbosity.
XDG_UTILS_INSTALL_MODE This environment variable can be used by the user or
administrator to override the installation mode. Valid values are user
and system.
EXIT CODESAn exit code of 0 indicates success while a non-zero exit code indicates failure. The following failure codes can be returned:1 Error in command line syntax.
2 One of the files passed on the command line did not
exist.
3 A required tool could not be found.
4 The action failed.
5 No permission to read one of the files passed on the
command line.
SEE ALSOxdg-icon-resource(1), xdg-desktop-menu(1), Shared MIME database specification[1], MIME applications associations specification[2]EXAMPLESxdg-mime query filetype /tmp/foobar.png Prints the MIME type of the file /tmp/foobar.png, in this case image/png xdg-mime query default image/png Prints the .desktop filename of the application which is registered to open PNG files. xdg-mime install shinythings-shiny.xml Adds a file type description for "shiny"-files. "shinythings-" is used as the vendor prefix. The file type description could look as follows. shinythings-shiny.xml: <?xml version="1.0"?> <mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'> <mime-type type="text/x-shiny"> <comment>Shiny new file type</comment> <glob pattern="*.shiny"/> <glob pattern="*.shi"/> </mime-type> </mime-info> An icon for this new file type must also be installed, for example with: xdg-icon-resource install --context mimetypes --size 64 shiny-file-icon.png text-x-shiny AUTHORSKevin KrammerAuthor.
Jeremy White Author.
COPYRIGHTCopyright © 2006NOTES
http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec/
http://www.freedesktop.org/wiki/Specifications/mime-apps-spec/
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