**Homebrew makes it possible to install UNIX tools on macOS or Linux simply and flexibly. Homebrew's logo is a glass of beer with an apple. A very creative idea by the developers!**

The Package Manager is written in the Ruby programming language. Homebrew is very resource-efficient, because it mainly uses programs and services that are already available on macOS or Linux. We show you how to install Homebrew on your system. Furthermore, we also demonstrate to you how to use Homebrew. Finally, we give you a few tips for using Homebrew. The steps are the following: 1. Installation of Homebrew 2. Install your first UNIX tool 3. Install a MacOS App via cask 4. Practical tips 5. Conclusion ## Installation of Homebrew You can install Homebrew with a command in the macOS terminal. There are other [installation options](https://docs.brew.sh/Installation){:target="_blank" rel="noopener"} that you can read about if you are interested. **Install Homebrew with the following command:** ```bash /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" ``` Homebrew uses the command line tools of Apple's Xcode development environment. You can install Command Line Tools (CLT) for Xcode with the following command: ```bash xcode-select --install ``` Homebrew installs packages to their own directory. Then Homebrew links the files in /usr/local for macOS Intel and /opt/homebrew for Apple Silicon. For this reason, you do not need sudo after the initial Homebrew installation if you use brew install. There is also a completion definition for the brew command. Some packages also provide completion definitions for their own programs. Homebrew currently supports zsh, bash and fish. You can find more information at [Shell completion](https://docs.brew.sh/Shell-Completion){:target="_blank" rel="noopener"}. ## Install your first UNIX tool You can install UNIX tools via Homebrew Formulae. Under [Homebrew Formulae](https://formulae.brew.sh/formula/){:target="_blank" rel="noopener"}, you can search for UNIX tools. Try it out! **Installation of htop:** ```bash brew install htop ``` htop is a system resource monitor for the command line. htop is based on 'top' but provides a nicer visual display of process activity, CPU activity, memory usage, average load and process management. ## Install a macOS App via cask With Homebrew Cask, you can install macOS apps, fonts, plugins and other non-open source software. You can search for them via [Homebrew Cask](https://formulae.brew.sh/cask/){:target="_blank" rel="noopener"}. **Installation of Google Chrome app:** ```bash brew install --cask google-chrome ``` Right! You can also install Google Chrome via Homebrew. The advantage is that you can update the application via brew. ## Practical tips Homebrew takes a lot of the work out of package management. The most important commands can be found in the [Homebrew Documentation](https://docs.brew.sh/Manpage){:target="_blank" rel="noopener"}. Now we give you three more tips. ### Tip 1 We recommend that you only use Homebrew as a package manager. Other package managers could lead to conflicts. You should also install all UNIX tools via Homebrew to have an overview of your UNIX tools. **Overview of all packages:** ```bash # list all installed packages brew list --formula ``` **The installation command is always as follows:** ```bash # replace with the name of your package brew install ``` ### Tip 2 You should install as many macOS apps as possible via Homebrew. An overview of all apps you get with the following command. **Overview of all apps:** ```bash # list all installed macOS apps brew list --cask ``` **The installation command is always as follows:** ```bash # replace with the name of your app brew install --cask ``` ### Tip 3 You can use Homebrew to keep all your packages and apps up to date with one command. This procedure takes a lot of work off your hands. In practice, you can do this command once a week. **Upgrade all packages and apps:** ```bash # upgrade all installed packages and apps $ brew upgrade ``` **Note:** Homebrew does not support different package versions. For this reason, when a new package is installed, old packages are sometimes also upgraded. So don't be surprised! ## Conclusion This article has shown you how to use Homebrew. You can now install packages and apps via Homebrew. We have also given you some practical tips.