Git commands

[DevShivmohan]

Revert previous commited changes

• Type command git revert <commit_id>
• Then write commit message and type semicolon(:) then type q then hit enter
• Then type command git push
• Now these are reverted

[DevShivmohan]

Fetch from upstream to origin [applicable only if repository has been forked]

• Check current configured repository in the list .

  $ git remote -v
  > origin  https://github.com/YOUR_USERNAME/YOUR_FORK.git (fetch)
  > origin  https://github.com/YOUR_USERNAME/YOUR_FORK.git (push)

• Specify a new remote upstream repository that will be synced with the fork. $ git remote add upstream https://github.com/ORIGINAL_OWNER/ORIGINAL_REPOSITORY.git.

• Verify the new upstream repository you've specified for your fork.

  $ git remote -v
  > origin    https://github.com/YOUR_USERNAME/YOUR_FORK.git (fetch)
  > origin    https://github.com/YOUR_USERNAME/YOUR_FORK.git (push)
  > upstream  https://github.com/ORIGINAL_OWNER/ORIGINAL_REPOSITORY.git (fetch)
  > upstream  https://github.com/ORIGINAL_OWNER/ORIGINAL_REPOSITORY.git (push)

• Fetch the branches and their respective commits from the upstream repository. Commits to BRANCHNAME will be stored in the local branch upstream/BRANCHNAME.

  $ git fetch upstream
  > remote: Counting objects: 75, done.
  > remote: Compressing objects: 100% (53/53), done.
  > remote: Total 62 (delta 27), reused 44 (delta 9)
  > Unpacking objects: 100% (62/62), done.
  > From https://github.com/ORIGINAL_OWNER/ORIGINAL_REPOSITORY
  >  * [new branch]      main     -> upstream/main

• Check out your fork's local default branch - in this case, we use v4.0.0.0 for origin branch.

  $ git checkout v4.0.0.0
  > Switched to branch 'v4.0.0.0'

• Merge the changes from the upstream default branch - in this case, upstream/v4.0.0 - into your local default branch. This brings your fork's default branch into sync with the upstream repository, without losing your local changes.

  $ git merge upstream/v4.0.0
  > Updating a422352..5fdff0f
  > Fast-forward
  >  README                    |    9 -------
  >  README.md                 |    7 ++++++
  >  2 files changed, 7 insertions(+), 9 deletions(-)
  >  delete mode 100644 README
  >  create mode 100644 README.md

Note.

• origin = OUR_FORK_REPO = YOUR_USERNAME/YOUR_FORK.git
• upstream = ORIGINAL_OWNER_REPO = ORIGINAL_OWNER/ORIGINAL_REPOSITORY.git
• Now your local checked out branch has uptodate
• All synced changes into your local not in GitHub repository
• For more details click here for official GitHub docs