???????????????ssh?????
????$??cd ~/.ssh
??????????????git?????
????$??ssh-keygen -t rsa -b 4096 -C "email@email.com" -f id_rsa_github
????id_rsa_github??????????
???????????????????
????$??clip < ~/.ssh/id_rsa_github.pub
????????????????.ssh????????洴??config???
????Host github.com
????HostName github.com
????User user1
????PreferredAuthentications publickey
????IdentityFile ~/.ssh/id_ras_github  ## ????????????????
????????ж????????????????
????Host github.com
????HostName github.com
????User user1
????PreferredAuthentications publickey
????IdentityFile ~/.ssh/id_ras_github1
????Host github.com
????HostName github.com
????User user1
????PreferredAuthentications publickey
????IdentityFile ~/.ssh/id_ras_github2
???????崠??
????git clone git@gitlab.xxx.com:second/test.git