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    Home»MacOS»How to Install Homebrew on macOS

    How to Install Homebrew on macOS

    RahulBy RahulJanuary 30, 20182 Mins ReadUpdated:November 24, 2020

    Homebrew is the most popular package management tool for macOS systems. Using the brew command line utility you can easily add new packages on your mac, but first, you have to install it. This tutorial will help you to install Homebrew on your system using simple commands.

    Install Homebrew on macOS

    Launch the terminal (/Applications/Utilities/Terminal) application on your system and then run below command on it

    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
    

    The installation process will prompt for the password. Just enter your password where required to complete the Homebrew installation. The process will take some time.

    Install homebrew macOS

    Once the installation completed, execute the below command to check version.

    brew --version
    
    omebrew 2.5.11
    Homebrew/homebrew-core (git revision 9f822; last commit 2020-11-24)
    

    You may also run the below command to ensure everything is configured correctly.

    brew doctor
    

    The above command will show the instructions for correcting any issues.

    Upgrade Homebrew

    To upgrade Homebrew, execute the command below in terminal prompt.

    cd "$(brew --repo)" git fetch && git reset --hard origin/master && brew update
    

    Uninstall Homebrew?

    To uninstall Homebrew, execute the command below in a terminal prompt.

    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
    

    You can also download the uninstall script and run as below to view more uninstall options.

    ./uninstall --help 
    
    brew Homebrew macOS
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    2 Comments

    1. edou on May 28, 2018 5:17 pm

      j’arrive pas voici lerreur

      pc85:~ felicite$ curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install

      #!/System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby
      # This script installs to /usr/local only. To install elsewhere you can just
      # untar https://github.com/Homebrew/brew/tarball/master anywhere you like or
      # change the value of HOMEBREW_PREFIX.
      HOMEBREW_PREFIX = “/usr/local”.freeze
      HOMEBREW_REPOSITORY = “/usr/local/Homebrew”.freeze
      HOMEBREW_CACHE = “#{ENV[“HOME”]}/Library/Caches/Homebrew”.freeze
      HOMEBREW_OLD_CACHE = “/Library/Caches/Homebrew”.freeze
      BREW_REPO = “https://github.com/Homebrew/brew”.freeze
      CORE_TAP_REPO = “https://github.com/Homebrew/homebrew-core”.freeze

      # no analytics during installation
      ENV[“HOMEBREW_NO_ANALYTICS_THIS_RUN”] = “1”
      ENV[“HOMEBREW_NO_ANALYTICS_MESSAGE_OUTPUT”] = “1”

      module Tty
      module_function

      def blue
      bold 34
      end

      def red
      bold 31
      end

      def reset
      escape 0
      end

      def bold(n = 39)
      escape “1;#{n}”
      end

      def underline
      escape “4;39”
      end

      def escape(n)
      “\033[#{n}m” if STDOUT.tty?
      end
      end

      class Array
      def shell_s
      cp = dup
      first = cp.shift
      cp.map { |arg| arg.gsub ” “, “\\ ” }.unshift(first).join(” “)
      end
      end

      def ohai(*args)
      puts “#{Tty.blue}==>#{Tty.bold} #{args.shell_s}#{Tty.reset}”
      end

      def warn(warning)
      puts “#{Tty.red}Warning#{Tty.reset}: #{warning.chomp}”
      end

      def system(*args)
      abort “Failed during: #{args.shell_s}” unless Kernel.system(*args)
      end

      def sudo(*args)
      args.unshift(“-A”) unless ENV[“SUDO_ASKPASS”].nil?
      ohai “/usr/bin/sudo”, *args
      system “/usr/bin/sudo”, *args
      end

      def getc
      system “/bin/stty raw -echo”
      if STDIN.respond_to?(:getbyte)
      STDIN.getbyte
      else
      STDIN.getc
      end
      ensure
      system “/bin/stty -raw echo”
      end

      def wait_for_user
      puts
      puts “Press RETURN to continue or any other key to abort”
      c = getc
      # we test for \r and \n because some stuff does \r instead
      abort unless (c == 13) || (c == 10)
      end

      class Version
      include Comparable
      attr_reader :parts

      def initialize(str)
      @parts = str.split(“.”).map { |p| p.to_i }
      end

      def (other)
      parts self.class.new(other).parts
      end
      end

      def force_curl?
      ARGV.include?(“–force-curl”)
      end

      def macos_version
      @macos_version ||= Version.new(`/usr/bin/sw_vers -productVersion`.chomp[/10\.\d+/])
      end

      def should_install_command_line_tools?
      return false if force_curl?
      return false if macos_version /dev/null`.chomp
      exe if $? && $?.success? && !exe.empty? && File.executable?(exe)
      end

      return unless @git
      # Github only supports HTTPS fetches on 1.7.10 or later:
      # https://help.github.com/articles/https-cloning-errors
      `#{@git} –version` =~ /git version (\d\.\d+\.\d+)/
      return if $1.nil?
      return if Version.new($1) > 6) & 07
      # g = (mode >> 3) & 07
      # o = (mode >> 0) & 07
      mode != 0755
      end

      def chmod?(d)
      File.exist?(d) && !(File.readable?(d) && File.writable?(d) && File.executable?(d))
      end

      def chown?(d)
      !File.owned?(d)
      end

      def chgrp?(d)
      !File.grpowned?(d)
      end

      # Invalidate sudo timestamp before exiting (if it wasn’t active before).
      Kernel.system “/usr/bin/sudo -n -v 2>/dev/null”
      at_exit { Kernel.system “/usr/bin/sudo”, “-k” } unless $?.success?

      # The block form of Dir.chdir fails later if Dir.CWD doesn’t exist which I
      # guess is fair enough. Also sudo prints a warning message for no good reason
      Dir.chdir “/usr”

      ####################################################################### script
      abort “See Linuxbrew: http://linuxbrew.sh/” if RUBY_PLATFORM.to_s.downcase.include?(“linux”)
      abort “Mac OS X too old, see: https://github.com/mistydemeo/tigerbrew” if macos_version < "10.5"
      abort "Don't run this as root!" if Process.uid.zero?
      abort <<-EOABORT unless `dsmemberutil checkmembership -U "#{ENV["USER"]}" -G admin`.include? "user is a member"
      This script requires the user #{ENV["USER"]} to be an Administrator.
      EOABORT
      # Tests will fail if the prefix exists, but we don't have execution
      # permissions. Abort in this case.
      abort <<-EOABORT if File.directory?(HOMEBREW_PREFIX) && (!File.executable? HOMEBREW_PREFIX)
      The Homebrew prefix, #{HOMEBREW_PREFIX}, exists but is not searchable. If this is
      not intentional, please restore the default permissions and try running the
      installer again:
      sudo chmod 775 #{HOMEBREW_PREFIX}
      EOABORT

      ohai "This script will install:"
      puts "#{HOMEBREW_PREFIX}/bin/brew"
      puts "#{HOMEBREW_PREFIX}/share/doc/homebrew"
      puts "#{HOMEBREW_PREFIX}/share/man/man1/brew.1"
      puts "#{HOMEBREW_PREFIX}/share/zsh/site-functions/_brew"
      puts "#{HOMEBREW_PREFIX}/etc/bash_completion.d/brew"
      puts HOMEBREW_REPOSITORY.to_s

      group_chmods = %w[ bin bin/brew etc Frameworks include lib sbin share var
      etc/bash_completion.d lib/pkgconfig var/log
      share/aclocal share/doc share/info share/locale share/man
      share/man/man1 share/man/man2 share/man/man3 share/man/man4
      share/man/man5 share/man/man6 share/man/man7 share/man/man8].
      map { |d| File.join(HOMEBREW_PREFIX, d) }.
      select { |d| chmod?(d) }
      # zsh refuses to read from these directories if group writable
      zsh_dirs = %w[share/zsh share/zsh/site-functions].
      map { |d| File.join(HOMEBREW_PREFIX, d) }
      user_chmods = zsh_dirs.select { |d| user_only_chmod?(d) }
      chmods = group_chmods + user_chmods
      chowns = chmods.select { |d| chown?(d) }
      chgrps = chmods.select { |d| chgrp?(d) }
      mkdirs = %w[Cellar Homebrew Frameworks bin etc include lib opt sbin share share/zsh share/zsh/site-functions var].
      map { |d| File.join(HOMEBREW_PREFIX, d) }.
      reject { |d| File.directory?(d) }

      unless group_chmods.empty?
      ohai "The following existing directories will be made group writable:"
      puts(*group_chmods)
      end
      unless user_chmods.empty?
      ohai "The following existing directories will be made writable by user only:"
      puts(*user_chmods)
      end
      unless chowns.empty?
      ohai "The following existing directories will have their owner set to #{Tty.underline}#{ENV["USER"]}#{Tty.reset}:"
      puts(*chowns)
      end
      unless chgrps.empty?
      ohai "The following existing directories will have their group set to #{Tty.underline}admin#{Tty.reset}:"
      puts(*chgrps)
      end
      unless mkdirs.empty?
      ohai "The following new directories will be created:"
      puts(*mkdirs)
      end
      if should_install_command_line_tools?
      ohai "The Xcode Command Line Tools will be installed."
      end

      wait_for_user if STDIN.tty? && !ENV["TRAVIS"]

      if File.directory? HOMEBREW_PREFIX
      sudo "/bin/chmod", "u+rwx", *chmods unless chmods.empty?
      sudo "/bin/chmod", "g+rwx", *group_chmods unless group_chmods.empty?
      sudo "/bin/chmod", "755", *user_chmods unless user_chmods.empty?
      sudo "/usr/sbin/chown", ENV["USER"], *chowns unless chowns.empty?
      sudo "/usr/bin/chgrp", "admin", *chgrps unless chgrps.empty?
      else
      sudo "/bin/mkdir", "-p", HOMEBREW_PREFIX
      sudo "/usr/sbin/chown", "root:wheel", HOMEBREW_PREFIX
      end

      unless mkdirs.empty?
      sudo "/bin/mkdir", "-p", *mkdirs
      sudo "/bin/chmod", "g+rwx", *mkdirs
      sudo "/bin/chmod", "755", *zsh_dirs
      sudo "/usr/sbin/chown", ENV["USER"], *mkdirs
      sudo "/usr/bin/chgrp", "admin", *mkdirs
      end

      [HOMEBREW_CACHE, HOMEBREW_OLD_CACHE].each do |cache|
      sudo "/bin/mkdir", "-p", cache unless File.directory? cache
      sudo "/bin/chmod", "g+rwx", cache if chmod? cache
      sudo "/usr/sbin/chown", ENV["USER"], cache if chown? cache
      sudo "/usr/bin/chgrp", "admin", cache if chgrp? cache
      end

      if should_install_command_line_tools?
      ohai "Searching online for the Command Line Tools"
      # This temporary file prompts the 'softwareupdate' utility to list the Command Line Tools
      clt_placeholder = "/tmp/.com.apple.dt.CommandLineTools.installondemand.in-progress"
      sudo "/usr/bin/touch", clt_placeholder
      clt_label = `softwareupdate -l | grep -B 1 -E "Command Line (Developer|Tools)" | awk -F"*" '/^ +\\*/ {print $2}' | sed 's/^ *//' | tail -n1`.chomp
      ohai "Installing #{clt_label}"
      sudo "/usr/sbin/softwareupdate", "-i", clt_label
      sudo "/bin/rm", "-f", clt_placeholder
      sudo "/usr/bin/xcode-select", "–switch", "/Library/Developer/CommandLineTools"
      end

      # Headless install may have failed, so fallback to original 'xcode-select' method
      if should_install_command_line_tools? && STDIN.tty?
      ohai "Installing the Command Line Tools (expect a GUI popup):"
      sudo "/usr/bin/xcode-select", "–install"
      puts "Press any key when the installation has completed."
      getc
      sudo "/usr/bin/xcode-select", "–switch", "/Library/Developer/CommandLineTools"
      end

      abort <&1` =~ /license/ && !$?.success?
      You have not agreed to the Xcode license.
      Before running the installer again please agree to the license by opening
      Xcode.app or running:
      sudo xcodebuild -license
      EOABORT

      ohai “Downloading and installing Homebrew…”
      Dir.chdir HOMEBREW_REPOSITORY do
      if git
      # we do it in four steps to avoid merge errors when reinstalling
      system git, “init”, “-q”

      # “git remote add” will fail if the remote is defined in the global config
      system git, “config”, “remote.origin.url”, BREW_REPO
      system git, “config”, “remote.origin.fetch”, “+refs/heads/*:refs/remotes/origin/*”

      # ensure we don’t munge line endings on checkout
      system git, “config”, “core.autocrlf”, “false”

      args = git, “fetch”, “origin”, “master:refs/remotes/origin/master”,
      “–tags”, “–force”
      system(*args)

      system git, “reset”, “–hard”, “origin/master”

      system “ln”, “-sf”, “#{HOMEBREW_REPOSITORY}/bin/brew”, “#{HOMEBREW_PREFIX}/bin/brew”

      system “#{HOMEBREW_PREFIX}/bin/brew”, “update”, “–force”
      else
      # -m to stop tar erroring out if it can’t modify the mtime for root owned directories
      # pipefail to cause the exit status from curl to propagate if it fails
      curl_flags = “fsSL”
      curl_flags += “k” if macos_version < "10.6"
      core_tap = "#{HOMEBREW_PREFIX}/Homebrew/Library/Taps/homebrew/homebrew-core"
      system "/bin/bash -o pipefail -c '/usr/bin/curl -#{curl_flags} #{BREW_REPO}/tarball/master | /usr/bin/tar xz -m –strip 1'"

      system "ln", "-sf", "#{HOMEBREW_REPOSITORY}/bin/brew", "#{HOMEBREW_PREFIX}/bin/brew"

      system "/bin/mkdir", "-p", core_tap
      Dir.chdir core_tap do
      system "/bin/bash -o pipefail -c '/usr/bin/curl -#{curl_flags} #{CORE_TAP_REPO}/tarball/master | /usr/bin/tar xz -m –strip 1'"
      end
      end
      end

      warn "#{HOMEBREW_PREFIX}/bin is not in your PATH." unless ENV["PATH"].split(":").include? "#{HOMEBREW_PREFIX}/bin"

      ohai "Installation successful!"
      puts

      # Use the shell's audible bell.
      print "\a"

      # Use an extra newline and bold to avoid this being missed.
      ohai "Homebrew has enabled anonymous aggregate user behaviour analytics."
      puts <<-EOS
      #{Tty.bold}Read the analytics documentation (and how to opt-out) here:
      #{Tty.underline}https://docs.brew.sh/Analytics.html#{Tty.reset}

      EOS

      if git
      Dir.chdir HOMEBREW_REPOSITORY do
      system git, "config", "–local", "–replace-all", "homebrew.analyticsmessage", "true"
      end
      end

      ohai "Next steps:"

      if macos_version “10.6”
      `/usr/bin/cc –version 2> /dev/null` =~ /clang-(\d{2,})/
      version = $1.to_i
      if version < 425
      puts "- Install the #{Tty.bold}Command Line Tools for Xcode:"
      puts " #{Tty.underline}https://developer.apple.com/downloads#{Tty.reset}"
      end
      elsif !File.exist? "/usr/bin/cc"
      puts "- Install #{Tty.bold}Xcode:"
      puts " #{Tty.underline}https://developer.apple.com/xcode#{Tty.reset}"
      end

      unless git
      puts "- Run `brew update –force` to complete installation by installing:"
      puts " #{HOMEBREW_PREFIX}/share/doc/homebrew"
      puts " #{HOMEBREW_PREFIX}/share/man/man1/brew.1"
      puts " #{HOMEBREW_PREFIX}/share/zsh/site-functions/_brew"
      puts " #{HOMEBREW_PREFIX}/etc/bash_completion.d/brew"
      puts " #{HOMEBREW_REPOSITORY}/.git"
      end

      puts "- Run `brew help` to get started"
      puts "- Further documentation: "
      puts " #{Tty.underline}https://docs.brew.sh#{Tty.reset}"
      pc85:~ felicite$
      pc85:~ felicite$

      Reply
      • Temari on November 28, 2018 10:48 am

        La commande curl va uniquement t’afficher le script. Il faut utiliser la commande complète selon l’article:
        ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)”

        Reply

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