git init
git add .
git commit -m “init”
git remote add origin 你的github仓库地址
git push
但是，以上步骤，可能会出错，如下：
$ git push
fatal: The current branch master has no upstream branch.
To push the current branch and set the remote as upstream, use
git push --set-upstream origin master执行红色部分：
$ git push --set-upstream origin master
To gitee.com:xxxxx/yyyyy.git
! [rejected] master -> master (fetch first)
error: failed to push some refs to '[email protected]:xxxxx/yyyyy.git'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.还是报错
在push远程服务器的时候发现出现此错误；原因是没有同步远程的master
所以我们需要先同步一下，使用git pull origin master
$ git pull origin master
warning: no common commits
remote: Counting objects: 3, done.
remote: Total 3 (delta 0), reused 0 (delta 0)
Unpacking objects: 100% (3/3), done.
From gitee.com:xxxxx/yyyyy.git
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
fatal: refusing to merge unrelated histories依然有错误，接下来只要如下设置一下就OK了
$ git pull origin master --allow-unrelated-histories
From gitee.com:xxxxx/yyyyy.git
* branch master -> FETCH_HEAD
Merge made by the 'recursive' strategy.
README.md | 1 +
1 file changed, 1 insertion(+)
create mode 100644 README.md然后，继续同步操作：
$ git pull origin master
From gitee.com:xxxxx/yyyyy.git
* branch master -> FETCH_HEAD
Already up-to-date.再来设置一下upstream
$ git push --set-upstream origin master
Counting objects: 44, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (35/35), done.
Writing objects: 100% (44/44), 53.92 KiB | 0 bytes/s, done.
Total 44 (delta 2), reused 0 (delta 0)
To gitee.com:xxxxx/yyyyy.git
1e4dc19..8d8694c master -> master
Branch master set up to track remote branch master from origin.