情形:有两个git服务器，比如github,gitosc,有个项目同时在两个服务器上，要互相同步
其实命令还是比较简单的，比如一个现有的git项目，在github,gitosc中分别创建好对应的项目。
1：移除现在旧有的远程服务器origin
git remote rm origin
2:关联gitosc远程库
git remote add gitosc https://gitee.com/hongdada/learngit.git
git push -u gitosc master
关联github远程库
git remote add github https://github.com/hongdada/learngit.git
git push -u github master
3.查看远程库信息
λ git remote -v
github https://github.com/hongdada/learngit.git (fetch)
github https://github.com/hongdada/learngit.git (push)
gitosc https://gitee.com/hongdada/learngit.git (fetch)
gitosc https://gitee.com/hongdada/learngit.git (push)
这样就ok了，就布置好了，下面就是操作
D:\代码\Git\learngit
λ git push
Counting objects: , done.
Delta compression using up to threads.
Compressing objects: % (/), done.
Writing objects: % (/), bytes | bytes/s, done.
Total (delta ), reused (delta )
To https://gitee.com/hongdada/learngit.git
a48d040..875d588 master -> master D:\代码\Git\learngit
λ git push gitosc master
Everything up-to-date D:\代码\Git\learngit
λ git push github master
Counting objects: , done.
Delta compression using up to threads.
Compressing objects: % (/), done.
Writing objects: % (/), bytes | bytes/s, done.
Total (delta ), reused (delta )
remote: Resolving deltas: % (/), completed with local object.
To https://github.com/hongdada/learngit.git
a48d040..875d588 master -> master
可以看出我第一次是直接git push，没有指定远程库名称，默认推送到了gitosc中，开始还以为一次性推送到了2个服务器呢，剩下的github需要指定名称推送。
如果一次性推送呢
方法一：
D:\代码\Git\learngit
λ git remote rm github D:\代码\Git\learngit
λ git remote rm gitosc D:\代码\Git\learngit
λ git remote add all https://gitee.com/hongdada/learngit.git D:\代码\Git\learngit
λ git remote set-url --add all https://github.com/hongdada/learngit.git
推送：
D:\代码\Git\learngit
λ git push all --all
Counting objects: , done.
Delta compression using up to threads.
Compressing objects: % (/), done.
Writing objects: % (/), bytes | bytes/s, done.
Total (delta ), reused (delta )
To https://gitee.com/hongdada/learngit.git
af6a587..48a0880 master -> master
Counting objects: , done.
Delta compression using up to threads.
Compressing objects: % (/), done.
Writing objects: % (/), bytes | bytes/s, done.
Total (delta ), reused (delta )
To https://github.com/hongdada/learngit.git
af6a587..48a0880 master -> master
看到有2个推送说明
修改前打开项目.git文件夹内的config文件
[core]
repositoryformatversion =
filemode = false
bare = false
logallrefupdates = true
symlinks = false
ignorecase = true
[branch "master"]
remote = gitosc
merge = refs/heads/master
[branch "dev"]
[remote "github"]
url = https://github.com/hongdada/learngit.git
fetch = +refs/heads/*:refs/remotes/github/*
[remote "gitosc"]
url = https://gitee.com/hongdada/learngit.git
fetch = +refs/heads/*:refs/remotes/gitosc/*
修改后查看：
[core]
repositoryformatversion =
filemode = false
bare = false
logallrefupdates = true
symlinks = false
ignorecase = true
[branch "master"]
[branch "dev"]
[remote "all"]
url = https://gitee.com/hongdada/learngit.git
fetch = +refs/heads/*:refs/remotes/all/*
url = https://github.com/hongdada/learngit.git
方法二：根据上面的配置可以引出第二种一起修改多远程的方式，直接修改配置文件.git/config
删除all
git remote rm all
查看配置文件：
[core]
repositoryformatversion =
filemode = false
bare = false
logallrefupdates = true
symlinks = false
ignorecase = true
[branch "master"]
[branch "dev"]
修改配置文件为：
[core]
repositoryformatversion =
filemode = false
bare = false
logallrefupdates = true
symlinks = false
ignorecase = true
[branch "master"]
[branch "dev"]
[remote "all"]
url = https://github.com/hongdada/learngit.git
url = https://gitee.com/hongdada/learngit.git
推送信息：
D:\代码\Git\learngit
λ git push all --all
Counting objects: , done.
Delta compression using up to threads.
Compressing objects: % (/), done.
Writing objects: % (/), bytes | bytes/s, done.
Total (delta ), reused (delta )
To https://github.com/hongdada/learngit.git
48a0880..2dab796 master -> master
Counting objects: , done.
Delta compression using up to threads.
Compressing objects: % (/), done.
Writing objects: % (/), bytes | bytes/s, done.
Total (delta ), reused (delta )
To https://gitee.com/hongdada/learngit.git
48a0880..2dab796 master -> master