问题
Geek Lee@GEEKLEE-PC MINGW64 ~/learngit (master)
$ git push -u origin master
fatal: 'origin' does not appear to be a git repository
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
解决
Geek Lee@GEEKLEE-PC MINGW64 ~/learngit (master)
$ git remote add origin [email protected]:Geek-Lee/learngit.git
Geek Lee@GEEKLEE-PC MINGW64 ~/learngit (master)
$ git push origin master
The authenticity of host 'github.com (192.30.253.113)' can't be established.
RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'github.com,192.30.253.113' (RSA) to the list of know n hosts.
Counting objects: 20, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (16/16), done.
Writing objects: 100% (20/20), 2.22 KiB | 0 bytes/s, done.
Total 20 (delta 5), reused 0 (delta 0)
remote: Resolving deltas: 100% (5/5), done.
To [email protected]:Geek-Lee/learngit.git
* [new branch] master -> master
Geek Lee@GEEKLEE-PC MINGW64 ~/learngit (master)
$
之所以为什么加上-u不成功呢？
廖大原话是由于远程库是空的，我们第一次推送master分支时，加上了-u参数，Git不但会把本地的master分支内容推送的远程新的master分支，还会把本地的master分支和远程的master分支关联起来，在以后的推送或者拉取时就可以简化命令。从现在起，只要本地作了提交，就可以通过命令：$ git push origin master把本地master分支的最新修改推送至GitHub，现在，你就拥有了真正的分布式版本库！
我的可能就是原来有东西。
强烈推荐廖雪峰老师的git与github教程，我也是在那里学的，重点是….中文版！生动有趣，通俗易懂。
[廖大的Git教程]
（http://www.liaoxuefeng.com/wiki/0013739516305929606dd18361248578c67b8067c8c017b000）