Repository management in Linux CLI - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

What is the output of listing all configured remote repositories?

You run the command git remote -v in a repository with two remotes named origin and upstream. What is the expected output?

Linux CLI

git remote -v

A remote origin https://github.com/user/repo.git\nremote upstream https://github.com/other/repo.git

B origin https://github.com/user/repo.git\nupstream https://github.com/other/repo.git

C fetch origin https://github.com/user/repo.git\npush origin https://github.com/user/repo.git\nfetch upstream https://github.com/other/repo.git\npush upstream https://github.com/other/repo.git

D origin https://github.com/user/repo.git (fetch)\norigin https://github.com/user/repo.git (push)\nupstream https://github.com/other/repo.git (fetch)\nupstream https://github.com/other/repo.git (push)

💡 Hint

The -v option shows URLs for fetch and push separately.

The git remote -v command lists all remotes with their URLs and whether they are used for fetching or pushing.

💻 Command Output

intermediate

What is the output of adding a new remote repository?

You run git remote add backup https://example.com/backup.git in your repository. Then you run git remote. What is the output?

Linux CLI

git remote

A origin\nbackup

B backup

C origin https://github.com/user/repo.git\nbackup https://example.com/backup.git

D remote origin\nremote backup

💡 Hint

The git remote command lists remote names only.

After adding a remote named backup, git remote lists all remote names, including origin and backup.

🔧 Debug

advanced

Why does this command fail to clone a repository?

You run git clone [e-mail]:user/repo.git but get an error: Permission denied (publickey). What is the most likely cause?

Linux CLI

git clone [e-mail]:user/repo.git

A SSH keys are not set up or not added to the SSH agent

B The repository URL is incorrect and should use HTTPS

C You need to run the command with sudo

D Git is not installed on the system

💡 Hint

The error mentions Permission denied (publickey) which relates to SSH authentication.

This error means SSH authentication failed because the SSH key is missing or not loaded. Setting up SSH keys and adding them to the agent fixes this.

💻 Command Output

advanced

What is the output of listing all branches including remote ones?

You run git branch -a in a repository with local branches main, dev and remote branches origin/main, origin/feature. What is the output?

Linux CLI

git branch -a

A * main\n dev\n origin/main\n origin/feature

B main\ndev\norigin/main\norigin/feature

C * main\n dev\n remotes/origin/main\n remotes/origin/feature

D * main\n dev

💡 Hint

The -a option shows local and remote branches with the remotes/ prefix.

The output lists local branches with an asterisk marking the current branch, and remote branches prefixed with remotes/.

🧠 Conceptual

expert

What happens when you run git fetch --prune?

You run git fetch --prune in a repository. What is the effect of the --prune option?

A It deletes all untracked files in the working directory

B It removes remote-tracking references that no longer exist on the remote

C It deletes local branches that have been merged

D It resets the current branch to match the remote branch

💡 Hint

Pruning cleans up references to remote branches that were deleted.

The --prune option removes remote-tracking branches that no longer exist on the remote repository, keeping your local references clean.