If you use a Mac you should definitely have a look at installing Homebrew. It’s a great way to install and manage additional applications in a safe and self-contained way.
Once Homebrew is installed and running it’s a very good idea to keep it up to date. Here’s a list of useful basic commands to do just that.
brew update- this updates Homebrew itself, do this before doing anything else with Homebrew.
brew doctor- this is homebrew’s self-diagnostics tool. It will tell you if anything is wring with your Homebrew install. Do this after running brew update.
brew list- shows all the packages you have installed.
brew outdated- shows any packages you have installed that are not the newest version available.
brew upgrade- install latest versions of all outdated packages.
brew upgrade <package_name>- upgrade a specific out of date package.
brew pin <package_name>- prevent a particular package from being upgraded when you run brew upgrade.
brew unpin <package_name>- remove pinned package from being protected from brew upgrade.