linuxexpert-practice-labs/labs/linux-plus/4-4-1-git-basics/README.md

Linux+ 4.4.1: Git basics

Configuring Git, a first repository and commit, ignoring files, staging and diffs, and a branch.

Before you start

Work as root, so ~ is /root. The lab only checks that ~/repo doesn't exist yet, and notes whether you already have a ~/.gitconfig (reset removes one the lab didn't find).

Tasks

1. Install Git, set your name and email globally and make main the default branch name. Create the repository ~/repo, and commit an executable script hello.sh that prints hello with the message Add hello script.
2. Make Git ignore *.log files (create run.log to see it), change the greeting in hello.sh to hello, world, look at the unstaged and staged diffs, and commit everything with the message Greet the world, ignore logs.
3. Create a branch feature, append a date line to hello.sh there and commit it as Print the date. Back on main, hello.sh has no date line; compare the branches.

Hints

• git config --global user.name, user.email, init.defaultBranch; git init, git status, git add, git commit -m.
• .gitignore, git status --short, git diff, git add -A, git diff --staged, git log --oneline.
• git checkout -b feature (or git switch -c), git commit -am, git log --oneline --graph --all, git diff main..feature.