How to Install XClock on Linux Enable snaps on Red Hat Enterprise Linux and install xclock-simosx Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully. Snaps are discoverable and installable from the Snap Store , an app store with an audience of millions. Follow the below link for the detailed steps https://snapcraft.io/install/xclock-simosx/rhel