MAC Environment Brew Installation

Curl-l Https://get.rvm.io | Bash-s Stable   //RVM Installation

SOURCE ~/.RVM/SCRIPTS/RVM
Rvm-v   //version detection

RVM list known  //list known versions of Ruby

RVM Install 2.0.0    //install version
RVM List
RVM Remove 1.9.2

RVM 2.0.0--default   //Set the default version

------------    Limitations of the domestic network wall---------so

Because the default source for Ruby is probably cocoapods.org, there are sometimes problems with domestic access to this URL.

  Gem Source-r https://rubygems.org/

  Gem Source-a https://ruby.taobao.org
  Verify replace successful gem sources-l
1. Delete the old brew
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
2. Install the new brew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Brew Install/uninstall git

Brew Search Git
Brew List/update/info

MAC Environment Brew Installation