I just downloaded the latest point release of Quake 3 for linux. The file that I downloaded ends in .run extension and when I click on it nothing happens. How can I go about installing this under ...

Linux has many ways to install applications, including Personal Package Archives in Debian and Ubuntu-based distributions. Here's how they work.

Often, these will be a .run file, a shell script or a .deb file, a software package installer for Debian-based operating systems like Ubuntu, Linux Mint, or Pop!_OS.

Why does double-clicking not run my JAR file? Some Java installers configure Windows or Ubuntu to run Java JAR files when they are double clicked, but not every installer supports this configuration.