![]() These installable packages come in several forms. Sometimes, though, there are times when a package is made available with no repository attached. When important updates are released, your system kindly prompts you to accept the updates, and you can accept them all from one centralized location. The repository model is so popular because it provides a link between the user (you) and the developer. $ sudo dnf config-manager -add-repo= Installing apps without repositories In fact, when you install certain software, such as GNU Ring video chat, the Vivaldi web browser, Google Chrome, and many others, what you are actually installing is access to their private repositories, from which the latest version of their application is installed to your machine. You can usually install a repository as though it were a software package. For example, EPEL serves Red Hat Enterprise Linux and CentOS, RPMFusion serves Fedora, Ubuntu has various levels of support as well as a Personal Package Archive (PPA) network, Packman provides extra software for OpenSUSE, and provides community build scripts for Slackware.īy default, your Linux OS is set to look at just its official repositories, so if you want to use additional software collections, you must add extra repositories yourself. Your distribution has its standard repository for software that it packages for you, and there are usually extra repositories common to your distribution. Since open source is all about user choice, if you don't like the graphical user interface (GUI) that your distribution provides, there may be an alternative that you can install. The relevant application is usually tagged with the software or package keywords, so search your launcher or menu for those terms, and you'll find what you need. Like the underlying command, the name of the graphical installer depends on what distribution you are running. That’s it! Close all your application windows, and relaunch your app. Replacing jetbrains-pycharm-ce with your WM_CLASS, of course. desktop file from Step 1 with a text editor, and either add (if it’s not there already) this line to the bottom, or replace its previous value with the WM_CLASS string from Step 2: Your WM_CLASS is the most specific string in the list (use your intuition, in this case jetbrains-pycharm-ce is obviously about P圜harm, whereas the other seems to be related to all Java apps in general). (this is the output for P圜harm Community Edition). WM_CLASS(STRING) = "sun-awt-X11-XFramePeer", "jetbrains-pycharm-ce" You will find something like this in your terminal: Your mouse cursor will turn into a crosshair, and you must click anywhere on your application’s window. ![]() To find what your application’s WM_CLASS is, launch your app and run this in a terminal (using a small window for the terminal, leaving your app visible in the background, you’ll see why in a moment): To match a window to an application, Unity looks for the window’s WM_CLASS. This was the core of the issue in my case. desktop files might be enough to solve the issue, so try launching your app to see if that fixed it. Which returned sktop, the file that I was looking for. Ls ~/.local/share/applications | grep -i charm desktop files don’t necessarily match the application name that’s shown when you hover on the launcher (wonderful design idea, duh), so you might need to use grep to find the file.įor example, to find my P圜harm launcher, I had to execute If that is the case, remove one (probably the older one). One problem you may have is that you have more than one. In Ubuntu this is either inside ~/.local/share/applications or inside /usr/share/applications. Thus, you end up with two identical (or in the case of upgrades, very similar) versions of the icon in the Unity launchbar, with the additional annoyance of having one work as a window switcher, and the other working as a new launcher. The issue is this: for some applications, especially (but not necessarily) after upgrades, Unity somehow decides to spawn a new icon every time the app is launched. I’m so glad I found out how to fix this, because it’s an issue that just kept popping up every now and then.
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