Multiple SSH Keys settings for different github account

ssh-config.txt

$ more ~/.ssh/config 
Host github.com_ls
    HostName github.com
    User lizziesky@gmail.com  // 邮箱或者账户名
    IdentityFile ~/.ssh/id_rsa_ls

Host github.com
    HostName github.com
    User shengyan1985@gmail.com
    IdentityFile ~/.ssh/id_rsa

// like https://gist.github.com/jexchan/2351996

// 生成不同 ssh pub key, 添加到不同 github 账号 setting 的 ssh-key 中
// github 上不同账号的不同库对另一个账号没有读写全限时, 

$ git clone git@github.com_ls:sunsetsunrise/xxx.git 获取 lizziesky@gmail.com 账户下的仓库
$ git clone git@github.com:lizzie/yyy.git 获取 shengyan1985@gmail.com 账户下的仓库