# Github Tutorial
:spiral_note_pad: https://hackmd.io/@sysprog/gnu-linux-dev/https%3A%2F%2Fhackmd.io%2F%40sysprog%2Fgit-with-github

### SSH key 產生連接 Github

https://hackmd.io/@sysprog/gnu-linux-dev/https%3A%2F%2Fhackmd.io%2F%40sysprog%2Fgit-with-github?fbclid=IwAR2dMiRtKmfpKHP9SwDTVdeaefefgV6f-wABjjh-VwNwwyeHsRvAoNlGey4#SSH-key-%E7%94%A2%E7%94%9F%E7%9A%84%E6%96%B9%E6%B3%95

教學網站
https://www.rs-online.com/designspark/github-nvidia-cn
### Create new folder and initialize

$ mkdir test_1109
$ cd test_1109
$ git init

### Git Clone

$ git clone {https://github.com/...}

### Create a file and git status
> 1. create a file
> 2. git add {file}
> 3. git status
> 4. git commit -m "file"
> 5. git push

$ vim test1.cpp   #create a file


error to get git status -> need to type "git add" first

$ git add {file_name}
$ git add --all
$ git add -A

after "git add" -> file is tracked

$ git status


$ git commit -m “add new file”

:exclamation: If it is the first time to git the file, then you should login first

$ git config --global user.email "[e-mail]"
$ git config --global user.name "Your Name"

### Git push to synchronous
在自己的github上打開空的 repository，Github 會指示你如何將本機 repository 的 remote 設定為遠端的 repository 目錄，並輸入以下命令，即可連線並把目前的 repository 同步到 Github 上面了。

master:
:::info
$ git remote add yourpkg-name [e-mail]:你的帳號名稱/你的專案名稱.git
$ git push -u your-pkg-name master
:::

main:
:::info
git branch -M main
git remote add origin [e-mail]:你的帳號名稱/你的專案名稱.git
git push -u origin main
:::
### branch
> 1. git branch {branch_a}
> #create a new branch called branch_a
> 2. git checkout {branch_a}
> #switched to branch_a

* #### All branches list & current branch

$ git branch
$ git branch -a


* #### create and switch branch at the same time

$ git checkout -b <branch>

* #### git push in branch

$ git push --set-upstream origin branch_a  #first time
$ git push   #after that

* #### git merge

$ git checkout main  #switched to main
$ git merge branch_a

### git reset/ git revert
https://roykwokcode.medium.com/%E8%AE%93%E4%BD%A0%E7%9A%84%E4%BB%A3%E7%A2%BC%E5%9B%9E%E5%88%B0%E9%81%8E%E5%8E%BB-git-reset-%E8%88%87-git-revert-%E7%9A%84%E7%94%A8%E8%99%95-6ba4b7545690

## problem
### git clone -> can't git checkout and git reset
* git checkout need to be in repository
*