Home » How can I add an application to the GNOME window manager?

How can I add an application to the GNOME window manager?

Solutons:


In GNOME and other freedesktop.org-compliant desktop environments, such as KDE and Unity, applications are added to the desktop’s menus or desktop shell via desktop entries, defined in text files with the .desktop extension (referred to as desktop files). The desktop environments construct menus for a user from the combined information extracted from available desktop entries.

Desktop files may be created in either of two places:

  • /usr/share/applications/ for desktop entries available to every user in the system
  • ~/.local/share/applications/ for desktop entries available to a single user

You might need to restart GNOME for the new added applications to work.

Per convention, desktop files should not include spaces or international characters in their name.

Each desktop file is split into groups, each starting with the group header in square brackets ([]). Each section contains a number of key, value pairs, separated by an equal sign (=).

Below is a sample of desktop file:

[Desktop Entry]
Type=Application
Encoding=UTF-8
Name=Application Name
Comment=Application description
Icon=/path/to/icon.xpm
Exec=/path/to/application/executable
Terminal=false
Categories=Tags;Describing;Application

Explanation

  • [Desktop Entry] the Desktop Entry group header identifies the file as a desktop entry
  • Type the type of the entry, valid values are Application, Link and Directory
  • Encoding the character encoding of the desktop file
  • Name the application name visible in menus or launchers
  • Comment a description of the application used in tooltips
  • Icon the icon shown for the application in menus or launchers
  • Exec the command that is used to start the application from a shell.
  • Terminal whether the application should be run in a terminal, valid values are true or false
  • Categories semi-colon (;) separated list of menu categories in which the entry should be shown

Command line arguments in the Exec key can be signified with the following variables:

  • %f a single filename.
  • %F multiple filenames.
  • %u a single URL.
  • %U multiple URLs.
  • %d a single directory. Used in conjunction with %f to locate a file.
  • %D multiple directories. Used in conjunction with %F to locate files.
  • %n a single filename without a path.
  • %N multiple filenames without paths.
  • %k a URI or local filename of the location of the desktop file.
  • %v the name of the Device entry.

Note that ~ or environmental variables like $HOME are not expanded within desktop files, so any executables referenced must either be in the $PATH or referenced via their absolute path.

A full Desktop Entry Specification is available at the GNOME Dev Center.

Launch Scripts

If the application to be launched requires certain steps to be done prior to be invoked, you can create a shell script which launches the application, and point the desktop entry to the shell script. Suppose that an application requires to be run from a certain current working directory. Create a launch script in a suitable to location (~/bin/ for instance). The script might look something like the following:

#!/bin/bash
pushd "/path/to/application/directory"
./application "$@"
popd

Set the executable bit for the script:

$ chmod +x ~/bin/launch-application

Then point the Exec key in the desktop entry to the launch script:

Exec=/home/user/bin/launch-application

Very good answer from Thomas Nyman.

Gnome comes with gui tool gnome-desktop-item-edit assisting in creating *.desktop files.
We need to use it from command line, or create a desktop file for it.

Instructions to make Gnome Application from gnome-desktop-item-edit

  1. Open terminal windows and type the following command:

    gnome-desktop-item-edit --create-new /home/[your user name]/.local/share/applications
    
  2. In the opened window fill the following:

gnome-desktop-item-edit

Name: Gnome Applicaiton

Command: gnome-desktop-item-edit --create-new /home/[your user name]/.local/share/applications

Click on the icon to select a different icon.

  1. Click OK to close the windows

  2. Close the terminal window

Testing newly generated Gnome Application

  1. Open dash
  2. Type Application
  3. You should see the Gnome Application entered before
  4. Select it
  5. Create another application

To create for all users use:

sudo gnome-desktop-item-edit --create-new /usr/share/applications

If the command is missing on debian/ubuntu try:

sudo apt-get install gnome-panel 

The previous answers from Thomas Nyman and Dudi Boy are very good and detailed. I am posting this because I didn’t found a answer for my doubt in any other posts and I had to search in git issues.

After I followed the steps like Thomas Nyman suggested I have been able to make the icon for my program to appear in the App Menu. The problem here is that I use Dash to Dock as side bar and I could not pin the icon as a favourite like other icons. After searching I found that you need to add the line StartupWMClass=ApplicationName in .desktop file.
After that the option to add to favourites will appear by right clicking on the icon in Dash to Dock.

Related Solutions

Joining bash arguments into single string with spaces

[*] I believe that this does what you want. It will put all the arguments in one string, separated by spaces, with single quotes around all: str="'$*'" $* produces all the scripts arguments separated by the first character of $IFS which, by default, is a space....

AddTransient, AddScoped and AddSingleton Services Differences

TL;DR Transient objects are always different; a new instance is provided to every controller and every service. Scoped objects are the same within a request, but different across different requests. Singleton objects are the same for every object and every...

How to download package not install it with apt-get command?

Use --download-only: sudo apt-get install --download-only pppoe This will download pppoe and any dependencies you need, and place them in /var/cache/apt/archives. That way a subsequent apt-get install pppoe will be able to complete without any extra downloads....

What defines the maximum size for a command single argument?

Answers Definitely not a bug. The parameter which defines the maximum size for one argument is MAX_ARG_STRLEN. There is no documentation for this parameter other than the comments in binfmts.h: /* * These are the maximum length and maximum number of strings...

Bulk rename, change prefix

I'd say the simplest it to just use the rename command which is common on many Linux distributions. There are two common versions of this command so check its man page to find which one you have: ## rename from Perl (common in Debian systems -- Ubuntu, Mint,...

Output from ls has newlines but displays on a single line. Why?

When you pipe the output, ls acts differently. This fact is hidden away in the info documentation: If standard output is a terminal, the output is in columns (sorted vertically) and control characters are output as question marks; otherwise, the output is...

mv: Move file only if destination does not exist

mv -vn file1 file2. This command will do what you want. You can skip -v if you want. -v makes it verbose - mv will tell you that it moved file if it moves it(useful, since there is possibility that file will not be moved) -n moves only if file2 does not exist....

Is it possible to store and query JSON in SQLite?

SQLite 3.9 introduced a new extension (JSON1) that allows you to easily work with JSON data . Also, it introduced support for indexes on expressions, which (in my understanding) should allow you to define indexes on your JSON data as well. PostgreSQL has some...

Combining tail && journalctl

You could use: journalctl -u service-name -f -f, --follow Show only the most recent journal entries, and continuously print new entries as they are appended to the journal. Here I've added "service-name" to distinguish this answer from others; you substitute...

how can shellshock be exploited over SSH?

One example where this can be exploited is on servers with an authorized_keys forced command. When adding an entry to ~/.ssh/authorized_keys, you can prefix the line with command="foo" to force foo to be run any time that ssh public key is used. With this...

Why doesn’t the tilde (~) expand inside double quotes?

The reason, because inside double quotes, tilde ~ has no special meaning, it's treated as literal. POSIX defines Double-Quotes as: Enclosing characters in double-quotes ( "" ) shall preserve the literal value of all characters within the double-quotes, with the...

What is GNU Info for?

GNU Info was designed to offer documentation that was comprehensive, hyperlinked, and possible to output to multiple formats. Man pages were available, and they were great at providing printed output. However, they were designed such that each man page had a...

Set systemd service to execute after fstab mount

a CIFS network location is mounted via /etc/fstab to /mnt/ on boot-up. No, it is not. Get this right, and the rest falls into place naturally. The mount is handled by a (generated) systemd mount unit that will be named something like mnt-wibble.mount. You can...

Merge two video clips into one, placing them next to each other

To be honest, using the accepted answer resulted in a lot of dropped frames for me. However, using the hstack filter_complex produced perfectly fluid output: ffmpeg -i left.mp4 -i right.mp4 -filter_complex hstack output.mp4 ffmpeg -i input1.mp4 -i input2.mp4...

How portable are /dev/stdin, /dev/stdout and /dev/stderr?

It's been available on Linux back into its prehistory. It is not POSIX, although many actual shells (including AT&T ksh and bash) will simulate it if it's not present in the OS; note that this simulation only works at the shell level (i.e. redirection or...

How can I increase the number of inodes in an ext4 filesystem?

It seems that you have a lot more files than normal expectation. I don't know whether there is a solution to change the inode table size dynamically. I'm afraid that you need to back-up your data, and create new filesystem, and restore your data. To create new...

Why doesn’t cp have a progress bar like wget?

The tradition in unix tools is to display messages only if something goes wrong. I think this is both for design and practical reasons. The design is intended to make it obvious when something goes wrong: you get an error message, and it's not drowned in...