多重github帳號

1. 產生兩把rsa key並設定ssh config
~/.ssh/config

#gmail account
HOST github.com-gmail
    HostName github.com
    User git
    IdentityFile ~/.ssh/gmail_rsa
#hotmail account
HOST github.com-hotmail
        HostName github.com
        User git
        IdentityFile ~/.ssh/hotmail_rsa

2. 修改/.git/config
將URL從 github.com改成 github.com-gmail or github.com-hotmail