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homebrew.md

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Homebrew

Introduction

website: Homebrew

Homebrew is a package manager for macOS. It is a free and open-source software that simplifies the installation of software on Apple's macOS operating system.

Setup

Download and Install

  • Official installation script:

    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

    Then to add Homebrew to your shell profile, run:

    echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> /Users/$(whoami)/.zprofile
eval "$(/opt/homebrew/bin/brew shellenv)"

  • Recommended installation script: This script will install Homebrew and pre-dependencies, and set up the Homebrew environment.

    #! /bin/bash

step () {
    final=$(echo "$@")
    plus=$(expr ${#final} + 6)

    printhashtags () {
        for i in $(seq $plus); do
            printf "#"
        done
        echo
    }

    echo
    printhashtags
    printf "## %s ##\n" "$@"
    printhashtags
    echo
}

step "Installing xcode command line tools if not already installed"
xcode-select -p &> /dev/null
if [ $? -ne 0 ]; then
    echo "Xcode CLI tools not found. Installing them..."
    touch /tmp/.com.apple.dt.CommandLineTools.installondemand.in-progress;
    PROD=$(softwareupdate -l |
        grep "\*.*Command Line" |
        head -n 1 | awk -F"*" '{print $2}' |
        sed -e 's/^ *//' |
        tr -d '\n')
    softwareupdate -i "$PROD" -v;
else
    echo "'xcode command line tools' is already installed, you're set."
fi

step "Installing brew if not already installed"
if ! command -v brew &> /dev/null
then
    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> /Users/$(whoami)/.zprofile
    eval "$(/opt/homebrew/bin/brew shellenv)"
else
    echo "brew is already installed, you're set."
    sleep 1
fi

Check Installation

Try to check the version of Homebrew:

brew --version
# Homebrew 4.4.0

Install Apps

To install an app, use the following command:

brew install <app>

To install an app with GUI, use the following command:

brew install --cask <app>

To install an app only if it is not already installed, use the following function:

install () {
    if ! command -v "$@" &> /dev/null; then
       brew install "$@"
       # brew install --cask "$@"
    else
       echo "'$@' is already installed, you're set."
       sleep 1
    fi
}

Uninstall Apps

To uninstall an app, use the following command:

brew uninstall <app>

To uninstall an app with GUI, use the following command:

brew uninstall --cask <app>

Update Apps

To update Homebrew and all installed apps, use the following command:

brew update
brew upgrade