[Git] git push problem solving Updates were rejected because the tip of your current branch is behind and enter a user name and password each time

Question 1: When attempting to push to github git push -u origin master appears

error: failed to push some refs to '[email protected]:519ebayproject/519ebayproject.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Merge the remote changes (e.g. 'git pull')
hint: before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

The reason : local and remote repository different, need to merge (such as: the initialized when github repository is created, you put a local repository associated with it and want to push, it must first github repository and the original merger)

Solution :

Command (assuming your name is the remote repository origin)

git pull origin master

Use git pull the latest changes from local to remote storage Kula repository.

Question 2: git push every time you need to enter a user name and password

The reason : the use of the code is submitted https mode, create the repository with

git remote add origin https://github.com/user/repo.git

Solution : If the only way to add a ssh key user of sha in the repository can be achieved without the need to enter a user name and password submission.

Step 1: Create a repository use the following method:

git remote add origin [email protected]:(用户名)/版本库名 

E.g:

git remote add origin [email protected]:michaelliao/learngit.git

Step 2: After you need to create SSH Key (if previously added in the past github, you can ignore this step), the reference Liao Xuefeng teacher

Step 3: Submit the code has not logged in

git push -u origin master