如果您的存储库中已经有. Git /文件夹，则Git init不会初始化。所以，就你的情况来说，做

(1) rm -rf .git/

2)滚英寸

(3) git远程添加origin https://repository.remote.url

(4) git commit -m“提交信息”

(5) git push -f origin master

如果你用的是Mac(这可能在PC上也一样)，这里有一个非常简单的方法来做到这一点。奇怪的是，我到处寻找这个简单的方法，但始终没有找到。

Do not do anything on Github (other than having an account, and not having used up all your available repos). Download GitHub for Mac and install. Go through the account setup, etc. Do NOT create any repositories for your existing project. "Add New Local Repository" in repositories. Select your existing folder. It'll ask if you want to do that, say yes. Once done, you'll see a list of all your files, etc. Commit them. Go to Repositories and Publish (this will create the new repo on GitHub for you, if you set up your account properly). Go to Repositories and Push (you'll either see the "nothing to push" thing, or it'll push your files/changes to the newly-auto-made repo). Wonder why you could not find this simple process anywhere else.

我知道不建议使用项目文件夹作为回购文件夹。我一直这样做，它总是有效的，它使它变得简单，而且我从来没有遇到过任何麻烦。

创建一个新的存储库

git clone <url>
cd "repositoryName"
touch README.md
git add README.md
git commit -m "add README"
git push -u origin master

现有的文件夹

cd existing_folder
git init
git remote add origin <url>
git add .
git commit -m "Initial commit"
git push -u origin master

现有Git存储库

cd existing_repo
git remote rename origin old-origin
git remote add origin <url>
git push -u origin --all
git push -u origin --tags

Git自2005年问世以来一直是版本控制系统的首选。大约87%的开发者使用Git作为他们的版本控制系统。

但是如果你有一个已经存在的项目，并且你想要推送到远程服务器中的Git，请按照以下步骤执行:

Go to the terminal of your project directory You need to initialize your project git using git init Create a .gitignore file and it is actually a text file that tells Git which files or folders to ignore in a project. Stage your files using git add . Commit your changes to your local repository with an appropriate commit message: git commit -m "my first commit" In this step, you just need to create a repository in any one of the distributed version control systems like GitHub or Bitbucket Use this Git command to link your local repository with that of the remote: git remote add <your-remote-name> <your-remote-url>

所以，如果你的GitHub repo-url是https://github.com/your-github-username/new-repository.git，那么Git命令就变成:

git remote add origin https://github.com/<your-github-username>/new-repository.git

将代码推送到远程GitHub存储库 Git push origin master

注意:git push命令需要两个参数:远程存储库的名称(origin)和要推送的分支(这里master是每个存储库的默认分支)。

详细信息请参考这个博客。

我不想再补充另一个答案，但我的特定场景在这里没有完全涵盖。我有一个本地回购，其中有我想保存的更改历史，还有一个在Github上为我创建的非空回购(即默认的README.md)。是的，你总是可以将Github回购重新创建为空回购，但在我的情况下，其他人有权限创建这个特定的回购，如果有一个简单的解决方案，我不想麻烦他。

在这种情况下，当你在设置远程源后尝试git push时，你会遇到这个错误:

 ! [rejected]        master -> master (fetch first)
error: failed to push some refs to 'git@github.com:<my repo>.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.

正如错误所示，我需要在设置远程原点后执行git拉取，但我需要指定——allow-unrelated-histories选项。如果没有这个选项，git pull会发出警告:没有共同提交。

下面是对我有效的命令序列:

git remote add origin <github repo url>
cp README.md README.md-save
git pull origin master --allow-unrelated-histories
mv README.md-save README.md
git commit -a
git push

你需要在推送时指定哪个分支和哪个远程:

➤ git init ./
➤ git add Readme.md
➤ git commit -m "Initial Commit"
➤ git remote add github <project url>
➤ git push github master

将按预期工作。

默认情况下，你可以这样做:

➤ git branch -u github/master master

这将允许您在不指定远程或分支的情况下从master执行git推送。