Day 12 of 90DaysOfDevOps Challenge: Crafting Your Essential Linux and Git-GitHub Cheat Sheet 🛠️

This is #90DaysofDevops challenge under the guidance of Shubham Londhe sir.

Day 12 TASK

Introduction

Welcome to Day 12 of the #90DaysOfDevOps challenge! Today, we're diving into the world of Linux and Git-GitHub commands, and I'm excited to share with you a comprehensive cheat sheet that will be your go-to guide throughout your DevOps journey.

Let's get started!

Linux & Git Cheat-Sheet 🚀

🐧 Linux Cheat-Sheet

Navigation:

cd [directory]: Move to a different directory.
ls: List files and directories.
pwd: Display the current directory's path.
mkdir [directory]: Create a new directory.
rm [file]: Delete a file.
rm -r [directory]: Remove a directory and its contents.

File Operations:

touch [file]: Create a new file.
cat [file]: View file contents.
cp [source] [destination]: Copy files.
mv [source] [destination]: Move or rename files.

User and Group Management:

sudo [command]: Execute a command with superuser privileges.
useradd [username]: Create a new user.
passwd [username]: Set a password for a user.
su [username]: Switch to another user.
userdel [username]: Delete a user.
chmod [permissions] [file]: Change file permissions.
chown [owner:group] [file]: Change file owner and group.
chgrp [group] [file]: Change file group.

Process Management:

ps: Display running processes.
top: Monitor system resources and processes.
kill [pid]: Terminate a process.

Networking:

ping [host]: Check network connectivity.
ifconfig: View network interfaces.
netstat: Display network connections and statistics.

System Monitoring:

df -h: Show disk space usage.
free -h: Display available memory.
top: Display CPU utilization and other process information.

Additional Commands:

tar -czvf [archive.tar.gz] [files/directories]: Create a compressed tarball.
tar -xzvf [archive.tar.gz]: Extract a tarball.
grep [pattern] [file]: Search for a pattern in a file.
sed 's/old/new/g' [file]: Replace text in a file.
uname -a: Display system information.
apt update: Update package lists.
apt install [package]: Install a package.
apt remove [package]: Uninstall a package.

🐙 Git-GitHub Cheat-Sheet

Repository Management:

git init: Initialize a new Git repository.
git clone [repository]: Clone a repository from GitHub.
git add [file]: Add a file to the staging area.
git commit -m "[message]": Commit changes with a message.
git push: Push commits to a remote repository.
git pull: Fetch and merge changes from a remote repository.

Branching and Merging:

git branch: List branches.
git branch [branch]: Create a new branch.
git checkout [branch]: Switch to a branch.
git merge [branch]: Merge changes from a branch.
git rebase [branch]: Rebase changes onto another branch.

Stashing and Cleaning:

git stash: Temporarily shelve changes.
git stash pop: Apply stashed changes and remove from stash.

Cherry-Picking:

git cherry-pick [commit]: Apply a specific commit to the current branch.

Collaboration:

git remote add [name] [url]: Add a remote repository.
git fetch [remote]: Fetch changes from a remote repository.
git pull [remote] [branch]: Pull changes from a remote branch.
git push [remote] [branch]: Push commits to a remote branch.

Undoing Changes:

git reset --hard [commit]: Reset to a specific commit, discarding changes.
git revert [commit]: Revert changes introduced by a commit.

Feel free to keep this cheat sheet handy for quick reference during your DevOps journey. Let it remind you of the important commands and concepts we've covered together.

💡

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