push, pull & fetch

Syncing with the Remote

Command	Direction	Does
`git push`	local → remote	Upload your commits
`git fetch`	remote → local	Download commits, don't merge
`git pull`	remote → local	Fetch and merge into your branch

$ git push origin main
$ git pull            # = git fetch + git merge

Analogy: fetch is checking the mailbox (you see what arrived). pull is checking the mailbox and filing everything into your drawers (fetch + merge). push is mailing your letters out.

Warning: git pull can trigger a merge conflict if the remote changed lines you also changed. Commit or stash your work before pulling so you're never merging on top of a messy tree.

First push of a new branch needs the upstream set:

$ git push -u origin feature-login   # -u links local ↔ remote branch
$ git push                           # afterwards, just this