git是一个分布式代码管理工具，所以可以支持多个仓库，在git里，服务器上的仓库在本地称之为remote。
直接clone一个仓库：
$: git clone git@search.ued.taobao.net:projects/search.git
另外一种clone方式：
# 创建目录初始化本地仓库
$: mkdir search && cd search
$: git init
# 添加远程仓库路径
$: git remote add github git@github.com:yyfrankyy/search.git
# 实际上，pull 就是 fetch + merge
$: git pull github --all --tags
把工作目录迁移到github上面：
$: git remote add github git@github.com:yyfrankyy/search.git
$: git push github --all --tags
显示所有的远程仓库
$: git remote -v
origin git@search.ued.taobao.net:projects/search.git (fetch)
origin git@search.ued.taobao.net:projects/search.git (push)
github git@github.com:yyfrankyy/search.git (fetch)
github git@github.com:yyfrankyy/search.git (push)
重命名远程仓库
$: git remote rename github gh
$: git remote
origin
gh
删除远程仓库
$: git remote rm github
$: git remote
origin
从远程仓库抓取数据，更新本地仓库：
$: git fetch origin
remote: Counting objects: 58, done.
remote: Compressing objects: 100% (41/41), done.
remote: Total 44 (delta 24), reused 1 (delta 0)
Unpacking objects: 100% (44/44), done.
From git://search.ued.taobao.net:projects/search.git
* [new branch] product -> origin/product
查看远程仓库信息，可用于跟踪别人的push：
$: git remote show origin
* remote origin
Fetch URL: git@search.ued.taobao.net:projects/search.git
Push URL: git@search.ued.taobao.net:projects/search.git
HEAD branch: master
Remote branches:
master tracked
p4popt tracked
prepub tracked
product tracked
Local branches configured for 'git pull':
master merges with remote master
p4popt merges with remote p4popt
prepub merges with remote prepub
product merges with remote product
Local refs configured for 'git push':
master pushes to master (up to date)
p4popt pushes to p4popt (up to date)
prepub pushes to prepub (up to date)
product pushes to product (up to date)
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