Command	Description	Example Usage
ls	Lists the content of the current directory.	ls -la
cd	Changes the current directory.	cd /path/to/directory
pwd	Shows the absolute path of the current directory.	pwd
mkdir	Creates a new folder.	mkdir new_folder
touch	Creates a new, empty file.	touch new_file.txt
cp	Copies files or folders.	cp file.txt /path/to/destination
mv	Moves or renames files and folders.	mv old.txt new.txt
rm	⚠️ Deletes a file. Be careful!	rm old_file.txt
rm -r	⚠️ Deletes a folder and its content. Be very careful!	rm -r old_folder
cat	Shows the content of a file.	cat my_file.txt
man	Opens a detailed description of a command.	man cd
--help	Shows a short description of a command.	cd --help
history	Shows a history of the typed commands.	history
chmod	Changes the permission of a file or directory.	chmod 755 file.md
chown	Changes the owner or group of a file or directory.	chown root file.md
Git Version Control
git status	Shows the status of the local branch in relation to the remote branch.	git status
git init	Initializes a new Git repository in the current folder.	git init
git branch	Shows a list of all the local branches.	git branch
git switch	Switches to another branch.	git switch master
git add	Stages changes, preparing them for a commit.	git add .
git commit	Saves the staged changes to the local repository.	git commit -m "Your message"
git push	Uploads local commits to a remote repository (e.g., GitLab).	git push origin main
git pull	Fetches and merges changes from a remote repository.	git pull origin main
git log	Shows the commit history for the current branch.	git log --oneline
git diff	Shows the differences between the local and remote branch	git diff
git show	Opens a list of the last commits from the branch.	git show
git switch	Switches to a different branch (modern command).	git switch new-feature
git checkout	Switches branches or restores files (older, versatile command).	git checkout main
git restore	Discards changes in the working directory (modern command).	git restore file.txt
Docker Commands
docker run	Creates and starts a new container from an image.	docker run -it ubuntu bash
docker inspect	Displays low-level information on Docker objects.	docker inspect my_container
docker version	Shows the installed versions of Docker components.	docker version
docker info	Displays system-wide information about the Docker installation.	docker info
docker system prune	⚠️ Removes all unused containers, networks, and images.	docker system prune -a
docker images	Lists all Docker images on the local system.	docker images
docker pull	Downloads an image from a registry (like Docker Hub).	docker pull ubuntu:latest
docker ps	Lists all running containers.	docker ps -a
docker network connect	Connect a container to a network.	docker network connect my-network my-container
docker network create	Create a network.	docker network create my-network
docker network disconnect	Disconnect a container from a network.	docker network disconnect my-network my-container
docker network inspect	Display detailed information on one or more networks.	docker network inspect my-network
docker network ls	List networks.	docker network ls
docker network prune	Remove all unused networks.	docker network prune
docker network rm	Remove one or more networks.	docker network rm my-network