初始化一个git仓库并推送到远程

初始化一个git仓库并推送到远程

系统：ubuntu 18.04
写在前面：
大学自学了git, 工作当中一直也在使用git, 自以为已经非常熟悉git的常用命令了。但今天从在本地init git project 到push 远程的过程中遇到了一些问题，在这里做个总结，以便参考。

1.打开终端，在本地新建一个git仓库

mkdir myProject
cd myProject/
git init (初始化仓库)
Initialized empty Git repository in /home/intel/myProject/.git/

新建仓库后，你就可以复制你的项目到git仓库。

2.本地仓库准备好后，推送本地仓库到远程仓库

cd myProject
git add .
git commit . -m "this is a test file"
git remote add origin https://github.com/RachelRen05/myProject.git (在和远程仓库关联之前，需要你先在远程创建要关联的仓库)
git push origin master (推送到远程仓库)

执行git push时出错了：

To https://github.com/RachelRen05/myProject.git
 ! [rejected]        master -> master (fetch first)
error: failed to push some refs to 'https://github.com/RachelRen05/myProject.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.

这个错误主要是本地仓库和远程仓库不一致导致的，使用git pull将远程代码拉取到本地

3.拉取远程代码到本地

git pull origin master (master是所在的分支名，表示拉取master分支上的内容到本地)

git pull 时又出现了一个错误：

warning: no common commits
remote: Enumerating objects: 3, done.
remote: Counting objects: 100% (3/3), done.
remote: Total 3 (delta 0), reused 0 (delta 0), pack-reused 0
Unpacking objects: 100% (3/3), done.
From https://github.com/RachelRen05/myProject
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
fatal: refusing to merge unrelated histories

git pull或者git push中都有可能遇到fatal: refusing to merge unrelated histories的问题，这个问题是因为两个分支没有取得关系(master 与 origin master没有关联）。
解决方法：在git操作命令后面加--allow-unrelated-histories

4.重新拉取远程代码到本地仓库

git pull origin master --allow-unrelated-histories

5.重新执行git push将本地仓库推送到远程仓库

git push origin master

这样，就将本地新建的git仓库和远程仓库同步了。