https://www.runoob.com/w3cnote/git-guide.html
############example############
cd LBM
git init
git config --global user.name "xinyiyang"
git config --global user.email "yangx2@hawaii.edu"
git status
git add .
git status
git commit -m "first commit"
git remote add origin git@github.com:xinyiyang/LBM.git
git config --global remote.origin.url 'ssh://git@github.com/xinyiyang/LBM.git'
git branch
git branch -M main
git config -l
git push -u origin main
#############################
echo "# ENSO" >> README.md
git init
git add README.md
git commit -m "first commit"
git branch -M main
git remote add origin git@github.com:xinyiyang/ENSO.git
git push -u origin main
git branch # check branch
git config -l # list all config
[yangx2@keikikane ENSO]$ git config -l
color.ui=true
user.name=xinyiyang
user.email=yangx2@hawaii.edu
http.sslverify=false
remote.origin.url=ssh://git@github.com/xinyiyang/ENSO.git
core.repositoryformatversion=0
core.filemode=true
core.bare=false
core.logallrefupdates=true
branch.main.remote=origin
branch.main.merge=refs/heads/main