生成SSHkey

git config --global user.name "billsteve"

git config --global user.email"[e-mail]"

ssh-keygen -t rsa -C "[e-mail]"

生成多个sshkey

ssh-keygen -t rsa -C"[e-mail]” -f ~/.ssh/bill-rsa

https://my.oschina.net/stefanzhlg/blog/529403