There are several ways to manage your keyboard shortcuts in Linux. You can do it via Xmodmap (and Xkeycaps) or through your desktop environment’s keyboard/shortcut settings. This article will focus mainly on how to change the shortcuts or assign new ones on two of the most popular desktop environments, Gnome and KDE.
Gnome
To assign new shortcuts to Gnome on Ubuntu and remap the existing ones, press the Super key on your keyboard or click on Gnome’s Applications button to visit the main software menu. Start typing either keyboard or shortcuts and select the entry Keyboard Shortcuts when it shows up. From here, you can scroll down the list to find the particular keyboard shortcut you want to change. Click on the existing shortcut and, when prompted, press the new key combination you want to change it to. For example, the default shortcut to show the run command prompt is Alt + F2. If you want to change it, click on it, and hit the new combo of your hoice, such as Alt + F12. You can also create your own keyboard shortcut and assign it to run an application, a command, or a script. Click the button with the plus symbol at the very end of the list. The process is pretty straightforward: enter the name for your new shortcut and the command that will run with it in the Name and Command fields. Finally, click on the “Set Shortcut … ” button and, when prompted, press your desired key combination. Immediately, the window will update to include the combo you pressed. If you decide you don’t want a shortcut you’ve added, click on it to select it, then click on the red Remove button on the top-left corner of the window that will pop up. Note that you can only remove shortcuts you’ve added and not the existing ones. You can only un-assign the existing ones so that their function stops being accessible through a button combination. To do that, click on an existing shortcut. Instead of pressing a new key combo when prompted, press Backspace on your keyboard. You’ll be returned to the previous screen, but now the key combination for the shortcut will have disappeared.
KDE
To do the same thing in a modern version of KDE’s plasma desktop, hit the Super key on your keyboard or click on its main menu button and choose “System Settings.” When there, choose the Shortcuts entry in the workspace category on the left of the window. KDE is more complicated but also offers much more control since it splits its shortcuts into different groups. In Global Shortcuts, you will find keyboard combinations added to the system by both KDE and any installed applications. To change a shortcut that already exists, click on it and choose Custom instead of Default. Then, click on the button on the right of Custom and press your desired key combination when asked. In Standard Shortcuts you will meet keyboard combinations that are generally considered standard, no matter the desktop environment or even operating system. Web shortcuts are different in that they are not mapped to keyboard combinations but keywords. Those aren’t available everywhere and are accessible either through Krunner or in Konqueror’s address bar. For example, since DuckDuckGo’s search is mapped to the dd shortcut, if you’d like to search for Make Tech Easier, you can press Alt + F2, type dd:make tech easier, and hit Enter. Soon after, Konqueror will show up with your query open on DuckDuckGo’s page. Custom Shortcuts contains even more specialized shortcuts and is also the place where you can add your own to the mix. Right-click on an empty spot, and a pop-up menu will allow you to create new global shortcuts, window actions, or mouse gesture actions. A sub-menu also enables you to choose if the result will be a Command/URL, D-Bus Command, or Send Keyboard Input. After you create a new entry, you can enter a short description of what that shortcut is supposed to do in the Comment tab, define the shortcut (or gesture) itself in the Trigger tab, and, finally, enter the command (or URL) in the Action tab. If you don’t click on Apply on the bottom right to enable your tweaks, KDE will make sure to bug you about it to ensure you don’t lose any changes you made. That’s it. What other ways do you use to assign/remap keyboard shortcuts in your distro? Tell us in the comments section below.
