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brew:tldr:5aa00
brew: Fetch the newest version of Homebrew and of all formulae and casks from the Homebrew source repository.
$ brew update
try on your machine
The command "brew update" is used in macOS and Linux systems that have Homebrew installed. Homebrew is a popular package manager that allows users to easily install and manage command-line software.
When you execute the "brew update" command, it checks for any updates to the Homebrew itself, as well as the formulae (packages) it provides. This command fetches the latest version of Homebrew and updates its own database of available packages.
By running "brew update" regularly, you ensure that you have the most up-to-date version of Homebrew and can also access the latest software packages and their versions. It is a good practice to run this command before installing or upgrading any packages using Homebrew.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.