git commit with message - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

What is the output of this git commit command?

You run the command git commit -m "Initial commit" after staging some files. What will git display?

Git

git commit -m "Initial commit"

A nothing to commit, working tree clean

B

[master (root-commit) abc1234] Initial commit
 3 files changed, 15 insertions(+)

C fatal: no changes added to commit

D error: commit message required

💡 Hint

Think about what happens when you commit after staging files.

When you run git commit -m "message" after staging files, git creates a new commit with that message and shows a summary of changes.

💻 Command Output

intermediate

What error does this git commit command produce?

You run git commit -m without providing a message. What error message will git show?

Git

git commit -m

A error: switch `m' requires a value

B fatal: no commit message

C error: missing commit message after -m

D nothing to commit, working tree clean

💡 Hint

The -m option expects a message string immediately after it.

Git requires a message after -m. Without it, git shows: error: switch `m' requires a value.

🔀 Workflow

advanced

Which command sequence correctly commits changes with a message?

You have modified files and want to commit them with the message "Update README". Which sequence is correct?

A

git add .
git commit -m "Update README"

B

git commit
git add .
git commit -m "Update README"

C

git commit -m "Update README"
git add .

D

git add .
git commit

💡 Hint

Remember you must stage files before committing.

You must add files first with git add, then commit with git commit -m. Option A follows this order.

❓ Troubleshoot

advanced

Why does this git commit command fail?

You run git commit -m "Fix bug" but get the message: fatal: no changes added to commit. Why?

Git

git commit -m "Fix bug"

A The repository is corrupted

B The commit message is too short

C No files were staged before committing

D The branch is not checked out

💡 Hint

Check if you used git add before committing.

Git requires files to be staged before committing. Without staging, it shows: fatal: no changes added to commit.

✅ Best Practice

expert

Which git commit command correctly includes a multi-line message?

You want to commit with a title and a detailed description. Which command correctly does this?

A git commit -m "Fix bug"; git commit -m "This fixes the issue with login timeout."

B

git commit -m "Fix bug
This fixes the issue with login timeout."

C git commit -m "Fix bug" --message "This fixes the issue with login timeout."

D git commit -m "Fix bug" -m "This fixes the issue with login timeout."

💡 Hint

Git allows multiple -m options for multi-line messages.

Using multiple -m options adds multiple paragraphs to the commit message. Option D is correct.