Git-Gitlab-Genkins continuous integration

Git commonly used commands:

1. Create your account and mailbox
   git config --global user.name
   git config --global user.email
   CAT .gitconfig

2. Initialize git
   git the init

3. Add from a local directory to the staging area
   git the Add.
   Git the Add *

4. Add to a local warehouse from scratch
   git commit -m "description text"

5. Modify the file name
   git mv a a.txt

6. Delete the file name
   git rm -f filename

7. Check local directory and the temporary difference between
   git diff a

8. Check local warehouse and the staging of the difference between
   git diff --cached a

9. View historical Mirror
   git log
   git reflog more detailed image

10. From scratch fall back to the local directory
    git checkout a

11. From local warehouse to fall back to the staging area
    git reset HEAD a

12. Fall back to a specific image
    git reset --hard