I chose to install Ubuntu, a Linux distribution based on Debian and composed mostly of free and open-source software.

• First of all, I went to the official website in order to download the .ISO file. Then with the help of Rufus, a software that can be used to format and create bootable USB flash drives or Live USBs. I put Ubuntu on an external USB.
• Now I boot my laptop into Ubuntu installer.
• After this I choose the language, partition, location, username, password, other installation settings and I am done. Ubuntu is finally installed. After the installation I ran the command $ sudo apt update && sudo apt upgrade to get the latest updates for packages

I executed the following commands:

• for gcc compiler $ sudo apt install build-essential
• for VS Code $ sudo snap install --classic code

In order to install zsh, we need the git package so I ran the command

$ sudo apt-get install git

for zsh the command

$ sudo apt install zsh

for oh-my-zsh the command

sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

For oh my zsh configuration I changed the default theme robbyrussell to awesomepanda by accessing the .zshrc file with the command

$ sudo vi ~/.zshrc

I navigated to the property ZSH_THEME and changed it to awesomepanda.

ZSH_THEME="awesomepanda"

I installed the zsh-autosuggestions plugin by running the command

git clone https://github.com/zsh-users/zsh-autosuggestions ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-autosuggestions

I did the same thing as with the theme I ran the command in order to access the .zshrc file

$ sudo vi ~/.zshrc

Then I added zsh-autosuggestions to plugins attribute

plugins=(git zsh-autosuggestions)

To create a git repository I ran the command

git init

After this I created the hello.c, README.md and Makefile files

touch hello.c
touch README.md
touch Makefile

With the help of nano command I edited the files.

nano hello.c
nano Makefile

hello.c

#include <stdio.h>

int main() {
	printf("Hello World! \n");
	return 0;
}

Makefile

hello: hello.o
	gcc hello.o -o hello

hello.o: hello.c
	gcc -c hello.c

clean:
	rm *.o hello

Now I can run the make command in order to compile hello.c. Running the ./hello command will output Hello World!

make clean will remove every file with .o extension.

Finally, I can make a screenshots folder with mkdir command and upload the screenshots.

mkdir -p screenshots/01-install-unix-based-OS
cd screenshots
mkdir 02-install-essential-tools
mkdir 03-create-git-repository

After all this I can run the command that will add everything to be tracked by git

git add .

and before committing I have to configure my name and email.

git config --global user.name "Your Name"
git config --global user.email "[email protected]"

I can now make the first commit with the command

git commit -m "Initial commit"

I set the remote branch and change the main branch from master to main with the commands

git remote add origin
git branch -M main

I am ready to push the changes to the remote repository

git push -u origin main