Git - Version Control Part 1

As I am new to this concept, I am following the instructions from this video. After downlading it on windows and installing it, when I open the git bash, I have different user id. Should I use the webconsole from cloudx lab to generate the SSH or gitbash which is downloaded on my local computer? 

The error message "Repository not found" typically indicates that the Git repository you are trying to clone does not exist or you don't have the necessary permissions to access it. Here are a few steps to troubleshoot this issue:

1. Verify Repository URL: Check the correctness of the repository URL, ensuring there are no typos in the username and repository name.

2. Repository Access: Ensure you have the necessary permissions (e.g., collaborator access) to clone the repository, especially if it's a private repository.

3. SSH Key Configuration: If using SSH for authentication, confirm that your SSH key is correctly set up and associated with your GitHub account.

4. Repository Existence: Check if the repository actually exists under the specified GitHub account by visiting its URL in a web browser.

5. User Permissions: Make sure you are logged in with the correct GitHub account that has access to the repository.

Hi Mihir,

To resolve the "Permission denied (publickey)" error when cloning a Git repository via SSH, first ensure your SSH key is properly configured and added to your GitHub account. Generate an SSH key if needed and ensure correct file permissions (chmod 600 ~/.ssh/id_rsa). Test your SSH connection to GitHub (ssh -T git@github.com) and verify repository access. If issues persist, debug the SSH connection (ssh -vT git@github.com) for more details. Alternatively, consider cloning using HTTPS (git clone https://github.com/singh-ashok25/webserver.git) using your GitHub username and password.

Let's break down each Git command:

git branch:

This command is used to manage branches in Git.

Example: git branch feature_branch

Here, you're creating a new branch called "feature_branch."

git checkout:

This command is used to switch between branches in Git.

Example: git checkout feature_branch

Here, you're moving from your current branch to the "feature_branch." You'll start working on and making changes in this branch.

git checkout master:

This is a specific use of the git checkout command.

Example: git checkout master

Here, you're switching back to the "master" branch. This is useful when you want to go back to the main development line or switch between different branches.

'Master' is the default branch in Git. It's often considered the main branch where the primary development takes place. It represents the most stable version of the project.

In the context of version control systems like Git, a branch is like a separate line of development that allows you to work on a feature, bug fix, or any change without affecting the main or other branches. Let's break it down:

Parallel Lines:

Think of the main project as the main timeline. When you create a branch, it's like creating a parallel timeline. The main project and your branch can evolve independently.

Isolated Work:

Each branch is its own space to make changes. This means you can experiment, add new features, or fix issues without interfering with what's happening in the main project or other branches.

Safe Testing:

Creating a branch is like setting up a safe testing ground. If your changes work well, you can merge them back into the main project. If not, it's okay because your changes haven't affected the main project yet.

Multiple Tasks:

Multiple branches can exist simultaneously. This allows different team members to work on different features or fixes without stepping on each other's toes.

Version History:

Each branch maintains its own version history. This history shows the changes made to the project on that specific branch.

Merge Points:

When you're done with the changes in a branch, you can merge it back into the main project or another branch. This combines the changes and integrates your work with the rest of the project.

In summary, a branch in Git is a way to work on your code in isolation, experiment with changes, and then integrate those changes back into the main project when you're ready. It helps in managing and organizing development tasks in a collaborative environment.

Hi Viral,

I understand that diving into Git can be a bit overwhelming at first, especially if you're coming from a background in electrical engineering and have been working in SAP. Let's break down the points you mentioned:

1. What is SSH?

SSH (Secure Shell) is a cryptographic network protocol used to secure communication over an unsecured network.

Think of it like a secret tunnel between your computer and another computer (like a server or a website). This tunnel is secure because it's like having a lock and key that only you and the other computer know about.

When you use SSH, you're using this secure tunnel to talk to the other computer. It's a way for you to send and receive information without anyone else snooping around or messing with your stuff.

In the world of Git (a tool for managing and tracking changes in computer code), SSH is often used to securely connect your computer to a website (like GitHub) where your code is stored. It ensures that only you can access and update your code, keeping it safe and sound.

2. What is an SSH key?

An SSH key is like a virtual ID card for your computer that helps it securely talk to other computers, especially when using services like GitHub or GitLab.

Here's a simple breakdown:

Key Pair:

It comes in a pair: a public key and a private key. Think of them like a lock and key set.

Public Key:

This is the part you can freely share with others or with online services. It's like telling them, "Hey, this is my ID, and you can trust me because I have the matching private key."

Private Key:

This is the secret part that stays on your computer. It's like the actual key to the lock. You never share this with anyone.

Secure Communication:

When you connect your computer to a service (like GitHub) using SSH, your computer uses its private key to prove it's really you. The service checks this with your public key, and if they match, it lets your computer in.

In simpler terms, it's like having a special key that only your computer knows about, and you use it to securely access your online stuff, making sure it's really you and not someone else.

3. Did not understand the key generation part:

Key generation involves creating an SSH key pair. On your machine, you generate this pair using a tool like `ssh-keygen`. The private key stays on your machine, and you copy the public key to your Git hosting service.

Hi Rahul,

We understand that some users may encounter challenges while grasping Git concepts during the session. To provide you with the necessary support, we offer several options:

1. **Comments**: You can utilize the comments section itself to ask questions and seek clarification on any Git concepts that you find difficult to grasp. Our instructors and fellow learners are often active there and will be happy to assist you.

2. **Forum**: We maintain a dedicated forum where you can post your queries. It's a great place to engage in discussions, share your concerns, and receive guidance. You can access the forum at https://discuss.cloudxlab.com/.

3. **Direct Contact**: If you have specific, you can always reach out to our support team directly via email at reachus@cloudxlab.com. We'll do our best to address your concerns promptly and professionally.

Remember that learning Git can be challenging, especially for beginners, but seeking assistance and clarification is a crucial part of the learning process. Don't hesitate to reach out through any of the above channels, and we'll be here to support your understanding of concepts.

Happy Learning!

Hi, 

Yeah, so you can install git on MacOS by using the commands listed there. You can visit https://git-scm.com/downloads to install it on other devices.

Hi Jagan,

We are so sorry you feel that way. We take your feedback seriously, and we will strive to improve our content based on your suggestions. But, we have already included real-time examples in the tutorial. In this tutorial, we have explained VCS and Git and told their real-world use cases and why they are used as this was an introduction to git and VCS. In the next tutorial, we have explained how it works using a real-time example of creating and cloning a repo, collaborating, etc. 

However, we understand that different learners have varying levels of familiarity with the subject matter, and we will make efforts to make the tutorial better. Thanks for your valuable feedback. Happy learning!!

Hi,

Please check the permission for your ssh keys. Also, check whether you have copied the public key stored in ~/.ssh/id_rsa.pub file correctly to the SSH keys in your github account. 

What error are you getting?

Hi,

You can refer to the following tutorial for generating SSH keys: https://cloudxlab.com/assessment/displayslide/4953/github-project-getting-started-with-git-creating-ssh-keys-and-adding-to-github?course_id=95&playlist_id=435

Hi,

You can refer to the following tutorial for it: https://cloudxlab.com/assessment/displayslide/4953/github-project-getting-started-with-git-creating-ssh-keys-and-adding-to-github?course_id=95&playlist_id=435

Hi Navneet,
We have started from the very basics. We have started with version control first as it is the first concept to learn before starting git. We have then explained what is git and its several commands. For a better understanding, we have also provided lab. 

It would be much helpful if you can explain a bit more like in which concepts you were facing difficulties.

Hi,

It is not an empty repo. You can check that at: https://github.com/singh-ashok25/webserver.

What error are you getting?

Hi, Please check the permission for your ssh keys. Also, check whether you have copied the public key stored in ~/.ssh/id_rsa.pub file correctly to the SSH keys in your github account. 

Hi, You need to have access to CloudxLab for completing the project.

One can use finish most of the course and complete the rest of assignments that need lab access in the end with our free lab trial- upon completion you will be certified for free.

Also, you need to complete the course 100% to have a certificate.

CloudxLab strives to make learning affordable to its learners, and for this reason, we have had a summer sale on from 1st of April where all of our self paced courses are completely free of cost, anybody can upskill themselves completely free of cost and be job-ready, there is no other e-learning platform out there that does it for free, please feel free to correct us if you know one. thank you.

Hi

Can you please share the screenshot of the error?

There is no issue in using this version of git. The concepts will be same.

Please set up your ssh keys to push the branch. You can try this hands on to understand git - https://cloudxlab.com/assessment/playlist-intro/435/getting-started-with-git

Please use https url for cloning the repository without setting up ssh keys. You can choose either ssh url or https url of the repository. Click on the code button in Github to see these 2 urls. 

Below commands helped me to resolve this 

1) exec ssh-agent bash 

2) then eval ssh-agent -s 

3) then ssh-add ~/.ssh/id_rsa

Hi Prasant ,

Kindly let us know if you are still facing the issue.

Regards

Kanchan

Hi,

I checked the video. If you find it overwhelming, I would suggest you to watch the video at a lower speed. You can hear the explanation later once you have understood what is happening on the screen. Also, don't forget to follow the slides.

Thanks.

Hi,

Thank you for your feedback, we will definitely consider this when we are updating our courseware.

Thanks.

Sorry for the delay in response somehow in missed this comment, our webconsole or jupyter console can be used.