git_guide.txt

…or create a new repository on the command line
echo "# test_project" >> README.md
git init
git add README.md
git commit -m "first commit"
git remote add origin https://github.com/stevenbinhu21/test_project.git
git push -u origin master
…or push an existing repository from the command line
git remote add origin https://github.com/stevenbinhu21/test_project.git
git push -u origin master


#add submodule:
cd master_repo
git submodule add <remote git repo of the project for submodule>
git commit -m "...."
git push -u origin master

#update submodule
git submodule add <ssh://submodule_url> submodule_dir
git submodule init

# then after sometime, the submodule project changed
cd submodule_dir
# switch to master
git checkout master

# update master
git pull

# back to you submodule project root
cd ..

git commit -am "pulled down update to submodule dir"

# or in loop 
git submodule foreach git pull origin master



#branching the project
# create a new branch from master
git clone <master.git url>
cd <that file>
git branch <new_branch_name> master
# switch to the new branch repo
git checkout <new_branch_name>

# do whatever that updates the files, codes etc.
git add <some stuff>
git commit -m "added stuff to new branch repo"
git push origin <new_branch_name>

# then go check github for the new branch 

# merge branch to master
# care to do it at the github page? 
# no? then do
# switch to master
git checkout master
git merge <new_branch_name>
git push origin master
# might wanna delete the dev branch
git branch -d <new_branch_name>
git push --delete origin <branch_name>