//cd into your dir that have your code
//initiate it as a git repo
git init
git add --all
git commit -m "Initial Commit"
//copy the url for your EMPTY repo in bitbucket
//set the remote url for your repo and push your initial commit
git remote add origin https://<Bitbucket_Username>:<App_Password>@bitbucket.org/<Repo_Name>.git
git push -u origin master