git 多账户配置完整实现过程详解

$ git config --global user.name
$ git config --global user.email

$ git config --global --unset user.name "yourname"
$ git config --global --unset user.email "youremail"

$ ssh-keygen -t rsa -C "your_email1"
$ ssh-keygen -t rsa -C "your_email2"

ls -l ~/.ssh

-rw-------  1 faremax  staff  1679  7  6 11:05 id_rsa_github
-rw-r--r--  1 faremax  staff   400  7  6 11:05 id_rsa_github.pub
-rw-------  1 faremax  staff  1679  7  6 11:06 id_rsa_gitlab
-rw-r--r--  1 faremax  staff   405  7  6 11:06 id_rsa_gitlab.pub
-rw-r--r--  1 faremax  staff   602 12  6  2017 known_hosts

$ pbcopy < id_rsa_github.pub   # 复制文件内容

$ pbcopy < id_rsa_gitlab.pub

$ ssh-agent bash
$ ssh-add ~/.ssh/id_rsa
$ ssh-add ~/.ssh/id_rsa_github
$ ssh-add ~/.ssh/id_rsa_gitlab

$ touch ~/.ssh/config

#该文件用于配置私钥对应的服务器
#Default gitlab user(email1@hostname.com)
 Host git@hostname.com
 HostName https://hostname.com
 User git
 IdentityFile ~/.ssh/id_rsa_gitlab
######################################
#Add github user(email1@hostname.com)
 Host git@github.com
 HostName https://github.com
 User git
 IdentityFile ~/.ssh/id_rsa_github

$ ssh -T git@github.com
Hi faremax! You've successfully authenticated, but GitHub does not provide shell access.
$ ssh -T git@hostname.com
Welcome to GIT, faremax!