Difference between revisions of "Xdg-open"

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===run-mailcap===
 
===run-mailcap===
The {{ic|.mailcap}} file format used by the mutt mail program is way easier to read and write. The {{pkg|run-mailcap}} package from the AUR provides a executable that could be easily symlinked to {{ic|/usr/bin/xdg-open}}, but that parser is unable to handle directories or links. A very easy solution would be to install mimeo and add a line in your {{.mailcap}}:
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The {{ic|.mailcap}} file format used by the mutt mail program is way easier to read and write. The {{pkg|run-mailcap}} package from the AUR provides a executable that could be easily symlinked to {{ic|/usr/bin/xdg-open}}, but that parser is unable to handle directories or links. A very easy solution would be to install mimeo and add a line in your {{ic|.mailcap}}:
  
 
{{bc|#!/bin/sh
 
{{bc|#!/bin/sh

Revision as of 10:19, 10 April 2012

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xdg-open is a desktop-independent tool for configuring the default applications of a user. Many applications invoke the xdg-open command internally.

Inside a desktop environment (e.g. GNOME, KDE, Xfce, etc.), xdg-open simply passes the arguments to that desktop environment's file-opener application (gvfs-open, kde-open, or exo-open, respectively), which means that the associations are left up to the desktop environment. When no desktop environment is detected (for example when one runs a standalone window manager, e.g. Openbox), xdg-open will use its own configuration files.

Installation

xdg-open is part of the xdg-utils package available in [extra]. xdg-open is for use inside a desktop session only. It is not recommended to use xdg-open as root.

Configuration

The config file

xdg-open use configuration files located at ~/.local/share/applications/defaults.list(for a single user) and /usr/share/applications/defaults.list (system wide). Its format is as follows:

[Default Applications]
mimetype=desktopfile1;desktopfile2...

For example,

[Default Applications]
text/html=firefox.desktop
inode/directory=kde4-dolphin.desktop;Thunar.desktop;nautilus.desktop

The best way to look up the MIME type is to read the MimeTypes list in your application's .desktop file.

Some tools are available to edit the configuration files:

xdg-mime

To make Thunar the default file-browser, i.e. the default application for opening folders.

$ xdg-mime default Thunar.desktop inode/directory

to use xpdf as the default PDF viewer:

$ xdg-mime default xpdf.desktop application/pdf

This should create an entry in your local MIME database:

~/.local/share/applications/defaults.list
[Default Applications]
application/pdf=xpdf.desktop

Your PDF files should be opened with xpdf now.

Drop-in replacements

run-mailcap

The .mailcap file format used by the mutt mail program is way easier to read and write. The run-mailcap package from the AUR provides a executable that could be easily symlinked to /usr/bin/xdg-open, but that parser is unable to handle directories or links. A very easy solution would be to install mimeo and add a line in your .mailcap:

#!/bin/sh

application/octet-stream; mimeo %s 

Then use the defaults.list at ~/.local/share/applications/ to associate URLs and folders with applications and the .mailcap file for normal mimetypes.

mimetype

mimetype in perl-file-mimeinfo package is more intuitive.

To select default application for a given extension (you need a sample file):

$ mimetype -d file.extension

mimeo

mimeoAUR and xdg-utils-mimeoAUR in AUR provide xdg-utils and contains a xdg-open script patched to make use of mimeo the same way gnome-open would be used. Mimetype<->application associations can then be customised easily in $XDG_CONFIG_HOME/mimeo.conf or ~/.config/mimeo.conf

Environment Variables

Some environment variables such as BROWSER, DE and DESKTOP_SESSION will change behaviour of xdg-open. See Environment Variables for more information.

See also