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xdg-mime (1)
  • >> xdg-mime (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
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    NAME

    xdg-mime - command line tool for querying information about file type handling and adding descriptions for new file types
     
    

    SYNOPSIS

    xdg-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}
     

    DESCRIPTION

    The xdg-mime program can be used to query information about file types and to add descriptions for new file types.  

    COMMANDS

    query
    Returns 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 aplication'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 major-minor must be installed with the xdg-icon-resource command in the mimetypes context. For example the application/vnd.oasis.opendocument.text filetype requires an icon by the name of application-vnd.oasis.opendocument.text to be installed.
    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 mode
    mode 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 manualpage.
    --version
    Show the xdg-utils version information.
     

    ENVIRONMENT VARIABLES

    xdg-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 CODES

    An 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 ALSO

    xdg-icon-resource(1), xdg-desktop-menu(1)  

    EXAMPLES

    xdg-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 folows.

    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
    

     

    AUTHOR

    Kevin Krammer, Jeremy White.
    <kevin.krammer@gmx.at>
    <jwhite@codeweavers.com>


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    COMMANDS
    OPTIONS
    ENVIRONMENT VARIABLES
    EXIT CODES
    SEE ALSO
    EXAMPLES
    AUTHOR


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