First install git: https://git-scm.com/downloads
Check git version by
git –version
git config
git ls-remote
git branch
https://confluence.atlassian.com/bitbucketserver/basic-git-commands-776639767.html
$ git config --global user.name "John Doe"
$ git config --global user.email johndoe@example.com
git config –global –edit
git ls-remote
git remote -v
git branch newbranch
git branch -d branch
git branch -D branch
git branch -m branch
git branch -a
gitignore
directory/
*.log
git reset
git rm -rf –cached .
git push -d origin branchnname
git checkout branch
git merger previousbranch