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Installing Git - Step-by-Step CLI Walkthrough

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Introduction
Git is a tool that helps you save and track changes in your files. Installing Git lets you start using it on your computer to manage your projects easily.
When you want to save versions of your work to avoid losing changes.
When you need to share your code with friends or teammates.
When you want to keep a history of your project to see what changed and when.
When you want to work on your project from different computers without losing progress.
When you want to fix mistakes by going back to earlier versions of your files.
Commands
This command updates the list of available software so you can install the latest Git version.
Terminal
sudo apt update
Expected OutputExpected
Hit:1 http://archive.ubuntu.com/ubuntu focal InRelease Get:2 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB] Get:3 http://archive.ubuntu.com/ubuntu focal-backports InRelease [101 kB] Fetched 215 kB in 1s (234 kB/s) Reading package lists... Done
This command installs Git on your system and the -y flag automatically confirms the installation.
Terminal
sudo apt install git -y
Expected OutputExpected
Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: git 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 21.3 MB of archives. After this operation, 83.2 MB of additional disk space will be used. Get:1 http://archive.ubuntu.com/ubuntu focal/main amd64 git amd64 1:2.25.1-1ubuntu3.10 [21.3 MB] Fetched 21.3 MB in 3s (7,123 kB/s) Selecting previously unselected package git. (Reading database ... 123456 files and directories currently installed.) Preparing to unpack .../git_1%3a2.25.1-1ubuntu3.10_amd64.deb ... Unpacking git (1:2.25.1-1ubuntu3.10) ... Setting up git (1:2.25.1-1ubuntu3.10) ... Processing triggers for man-db (2.9.1-1) ...
→
-y - Automatically confirms yes to prompts during installation
This command checks that Git was installed correctly by showing its version.
Terminal
git --version
Expected OutputExpected
git version 2.25.1
Key Concept

If you remember nothing else, remember: installing Git lets you track and save your work safely on your computer.

Common Mistakes
Not updating the package list before installing Git
The system might try to install an old or missing version of Git.
Always run 'sudo apt update' before installing new software to get the latest versions.
Skipping the version check after installation
You won't know if Git installed correctly or which version you have.
Run 'git --version' to confirm Git is installed and working.
Summary
Update your system's software list with 'sudo apt update' to get the latest packages.
Install Git using 'sudo apt install git -y' to add it to your computer.
Verify the installation by running 'git --version' to see the installed Git version.

Practice

(1/5)
1. What is the main reason to install Git on your computer?
easy
A. To browse the internet faster
B. To manage and track changes in your code projects
C. To edit images and videos
D. To play games online

Solution

  1. Step 1: Understand Git's purpose

    Git is a tool used to track changes in files and collaborate on code projects.

  2. Step 2: Identify the correct use case

    Managing and tracking code changes matches Git's main function.

  3. Final Answer:

    To manage and track changes in your code projects -> Option B

  4. Quick Check:

    Git is for code version control = C [OK]
Hint: Git is for code version control, not media or browsing [OK]
Common Mistakes:
  • Confusing Git with software for editing media
  • Thinking Git improves internet speed
  • Assuming Git is for gaming
2. Which command correctly checks if Git is installed and shows its version?
easy
A. git --version
B. git version --check
C. check git version
D. version git --show

Solution

  1. Step 1: Recall Git version check command

    The standard command to check Git version is git --version.

  2. Step 2: Compare options

    Only git --version matches the correct syntax; others are invalid commands.

  3. Final Answer:

    git --version -> Option A

  4. Quick Check:

    Correct Git version command = B [OK]
Hint: Use 'git --version' to check Git installation quickly [OK]
Common Mistakes:
  • Using incorrect command order
  • Adding extra words not recognized by Git
  • Confusing command syntax
3. After running git --version on a terminal, you see the output: git version 2.40.0. What does this output mean?
medium
A. There is an error in the Git command
B. Git is not installed
C. Git is installed and the version is 2.40.0
D. Git needs to be updated

Solution

  1. Step 1: Interpret the command output

    The output shows 'git version 2.40.0', indicating Git is installed and its version number.

  2. Step 2: Understand what the output implies

    Since the version is displayed, the command worked and Git is present on the system.

  3. Final Answer:

    Git is installed and the version is 2.40.0 -> Option C

  4. Quick Check:

    Version output means Git installed = A [OK]
Hint: Version number output means Git is installed correctly [OK]
Common Mistakes:
  • Thinking output means Git is missing
  • Assuming output is an error message
  • Confusing version output with update requirement
4. You tried to install Git on Linux using sudo apt install git but got an error saying 'command not found'. What is the most likely cause?
medium
A. The package manager 'apt' is not available on your system
B. You typed the command incorrectly
C. Git is already installed
D. You are not connected to the internet

Solution

  1. Step 1: Analyze the error message

    'command not found' for 'apt' means the system does not recognize the package manager command.

  2. Step 2: Understand system differences

    Not all Linux systems use 'apt'; some use 'yum', 'dnf', or others.

  3. Final Answer:

    The package manager 'apt' is not available on your system -> Option A

  4. Quick Check:

    'apt' missing means wrong package manager = D [OK]
Hint: Check your Linux distro's package manager before installing Git [OK]
Common Mistakes:
  • Assuming internet is always the cause
  • Ignoring package manager differences
  • Thinking Git is already installed without checking
5. You want to install Git on Windows. Which of these steps is the best practice to ensure a successful installation?
hard
A. Install any random software and rename it to Git
B. Copy Git files from another computer without installation
C. Use the command sudo apt install git in Windows Command Prompt
D. Download Git from the official website and run the installer

Solution

  1. Step 1: Identify the correct installation method for Windows

    Windows requires downloading an official installer to properly set up Git.

  2. Step 2: Evaluate other options

    Copying files or using Linux commands on Windows won't work; renaming software is invalid.

  3. Final Answer:

    Download Git from the official website and run the installer -> Option D

  4. Quick Check:

    Official installer is best for Windows Git install = A [OK]
Hint: Always use official installers for Windows software [OK]
Common Mistakes:
  • Trying Linux commands on Windows
  • Copying files without proper installation
  • Using unofficial or random software