MacBook pro OS catalina 安装oh-my-zsh，homebrew, Command_Line_Tools_for_Xcode

新入手一代macbook pro 16 寸，然后发现terminal 颜色太差，想调整一下颜色，准备下载oh-my-zsh，安装的时候发现巨多坑。

我的os未升级，版本为 macOS Catalina Version 10.14.0

首先你采用美化并增强Mac终端介绍的方法，在终端中运行：

@macbook ~ $ git clone https://github.com/robbyrussell/oh-my-zsh.git ~/.oh-my-zsh
xcode-select: note: no developer tools were found at '/Applications/Xcode.app', requesting install. Choose an option in the dialog to download the command line developer tools.

@macbook ~ $ which brew
brew not found

报错没有安装开发工具

安装home brew，git，开发工具等

用ruby安装

按照stack overflow上的介绍，运行以下命令：

@macbook ~ $ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused

报错无法链接，原因类似404，解决办法自己找

然后通过高人帮忙打开在chrome中把https://raw.githubusercontent.com/Homebrew/install/master/install粘贴打开网站发现换了地址和安装方法：

中间还测试了安装brew命令遇到坑用sudo vim /etc/hosts, 在最后一行加上“199.232.28.133 raw.githubusercontent.com” 保存后，还是不行。

@macbook ~ $ sudo vim /etc/hosts
Password:
@macbook ~ $ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"        
curl: (35) LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to raw.githubusercontent.com:443 

依然不行

用bash安装

按照上面网页的介绍，采用bash命令安装

@macbook ~ $ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
curl: (35) LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to raw.githubusercontent.com:443 

依然报错，链接问题。

没办法，绕过404在浏览器打开“https://raw.githubusercontent.com/Homebrew/install/master/install.sh”，将shell代码另存为“install.rb”
运行：<