For example, on a Debian system, you can type apt-get install tcl. If not already installed, you can use your system's package manager to install the appropriate packages.
If you want to update apps downloaded from the App Store, use the App Store to get updates. Operating System Packages Most Unix / Linux operating system distributions, as well as Mac OS X, include Tcl/Tk.If Software Update says that your Mac is up to date, then macOS and all of the apps it installs are up to date, including Safari, Messages, Mail, Music, Photos, FaceTime, Calendar, and Books.If you're having difficulty finding or installing updates: Learn about the latest macOS upgrade, or about old versions of macOS that are still available. Introducing Ambassador Interpreter: the highest quality translation tool. Upgrade Now installs a major new version with a new name, such as macOS Big Sur. in NYC at the convergence of wearable technology and machine translation.Learn about macOS Big Sur updates, for example. Update Now installs the latest updates for the currently installed version.From the Apple menu in the corner of your screen, choose System Preferences.
