Commit

You might say

Save the code changes I have now—I don't want things to get messy and lose this working version.

Save one meaningful set of changes in the project historyA commit records selected changes with an author, time, and message. Before undoing work, distinguish uncommitted edits from commits that have already been pushed. Shared history is usually reversed with a new revert commit instead of rewriting old records.

Know first

Git

The navigation bar has been changedThis is still the current change

Save as a versioncommit→

✓Complete homepage navigationJust saved on this computer

git commit -m "Complete homepage navigation"

Commit is to create a named version record for this change. It is saved locally first; in order for GitHub to receive it, it needs to be pushed.

Quick checkChoose the best answer

git status shows changes in index.html and .env, but this commit should contain only the homepage navigation. What is safer?

Run git add . and commit both files, then clean it up laterCommit .env now and delete it from the latest version before pushingStage only index.html, inspect the staged diff, then commit with “Fix homepage navigation”

You can say this to an AI Agent

Inspect git status and the diff first. Commit only the homepage navigation changes and exclude .env. Write a message that says what was completed. After committing, give me the commit hash and confirm that nothing has been pushed yet.

Variants

git add

git add index.html

Specify the changes to be recorded in the next commit

git commit

git commit -m "Description"

After completing an independently explainable change

git log

git log --oneline

View commit history or locate a commit before reverting

git status

Not sure which files were changed, ask it first

Typical use cases

Feature step

zsh — my-first-page

$ git add index.html $ git commit -m "Repair button is misplaced on mobile phone" [main e7b2d48] Fix button misplacement on mobile phone 1 file changed, 6 insertions(+), 3 deletions(-)

Bug fix

Source code management 2

Message (press ⌘Enter to submit)

Change

📄 index.htmlM

📄 style.cssM

✓ Submit

⑂ main*　⊘ 0　⚠ 0

Copy update

zsh — my-first-page

$ git log --oneline e7b2d48 Fix button alignment on mobile a3f9c21 Finish the home-page navigation b4c5d67 Home page basic version 0f1e2d3 Initialize project The first 7 bits are a short hash that can be used to identify the commit

Refactor checkpoint

Finish the home-page navigation

maya-lee committed 2 hours ago a3f9c21

📄 index.html　+48 -5

- <nav>Old navigation</nav>
+ <nav class="top-nav">New navigation</nav>
<main>…</main>

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