ruby, rvm homebrew,pods

1.安装ruby

1>安装 RVM

RVM: Ruby Version Manager, Ruby的版本管理器，包括Ruby的版本管理和Gem库管理(gemset)

curl -L get.rvm.io | bash -s stable

2>安装home-brew(切记先安装home-brew,再安装ruby!!)

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

如果有错误lion – Homebrew permissions & multiple users needing to brew update – Ask Different

sudo chgrp -R admin /usr/local
sudo chmod -R g+w /usr/local
brew update

卸载homebrew(如果想卸载就用这个)

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

3>查询rvm中的ruby版本

rvm list known

4>再安装ruby版本(最新版本2.3.0)

rvm install 2.3.0

ruby ,brew,都是可以自己去官网下载安装的，cocopods

2.安装CocoaPods

1>安装cocoapods(普通版本)

sudo gem install cocoapods

2>更新框架库

pod setup

可以查看框架镜像库的cd ~/.cocoapods

3>更新cocoapods版本(测试版本,仅供特定条件)

sudo gem install cocoapods --pre

4>指定安装cocoapods版本

sudo gem install cocoapods --version 1.0.1

brew update