github 多重帳號設定

在同一個domain下要使用不同ssh key

以github做範例

* Generating a new SSH key

    https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/

* add ssh publish key

    github -> profile -> SSH and GPG keys -> New SSH key

* vim ~/.ssh/config  修改 config

```sh Host github.com HostName github.com User git IdentitiesOnly yes IdentityFile ~/.ssh/id_rsa Host github.com-abc HostName github.com User git IdentitiesOnly yes IdentityFile ~/.ssh/abc_id_rsa ```
* clone example

```sh git clone git@github.com-abc:{foo}/{bar}.git ```
# 在不同Project底下使用不同User * 進入Project底下git目錄     修改底下的user email, name

```sh git config user.email "useremail@gmail.com" git config user.name "username" ```
* 如果想修改default global user
```sh vim ~/.gitconfig ```