Welcome to Day 12 of the #90DaysOfDevOps challenge. I'm happy to share my cheat-sheet summarizing all the essential commands and concepts I've learned during our Linux and Git/GitHub hands-on sessions.
📄 Linux & Git Cheat-Sheet 🚀
🐧 Linux Cheat-Sheet:
cd [directory]: Change your current directory to the specified directory.
ls: Display a list of files and directories in the current directory.
pwd: Print the absolute path of the current working directory.
mkdir [directory]: Create a new directory with the specified name.
rm [file]: Delete the specified file.
rm -r [directory]: Remove the specified directory and its contents recursively.
touch [file]: Create a new file with the specified name.
cat [file]: Display the contents of the specified file.
cp [source] [destination]: Copy the file from the source location to the destination location.
mv [source] [destination]: Move or rename the file from the source location to the destination location.
chmod [permissions] [file]: Change the permissions of the specified file.
sudo [command]: Execute the specified command with superuser privileges.
useradd [username]: Create a new user with the specified username.
passwd [username]: Set a password for the specified user.
su [username]: Switch to the specified user.
userdel [username]: Delete the specified user.
ps: Display a snapshot of the current running processes.
top: Monitor the real-time system resources and running processes.
kill [pid]: Terminate a process with the specified process ID.
ping [host]: Send ICMP Echo Request packets to the specified host to check network connectivity.
ifconfig: Display information about the network interfaces on your system.
netstat: Display network connections, routing tables, and network interface statistics.
🐙 Git-GitHub Cheat-Sheet:
git init: Initialize a new Git repository in the current directory.
git clone [repository]: Clone the specified repository from GitHub to your local machine.
git add [file]: Add the specified file to the staging area for the next commit.
git commit -m "[message]": Commit the staged changes with a descriptive message.
git push: Push the committed changes to a remote repository.
git pull: Fetch and merge the latest changes from a remote repository.
Branching and Merging:
git branch: List all the branches in the repository.
git branch [branch]: Create a new branch with the specified name.
git checkout [branch]: Switch to the specified branch.
git merge [branch]: Merge the changes from the specified branch into the current branch.
git remote add [name] [url]: Add a remote repository with the specified name and URL.
git fetch [remote]: Fetch the latest changes from the specified remote repository.
git pull [remote] [branch]: Pull the latest changes from the remote branch and merge them into the current branch.
git push [remote] [branch]: Push the local commits to the remote branch.
Feel free to use this cheat-sheet as a quick reference during your DevOps journey. Let it serve as a reminder of the powerful commands and concepts we've learned.
As we wrap up the Linux and Git/GitHub section, it's time to gear up for Day 13, where we'll embark on a new journey into the world of Python. Get ready for new learnings, challenges, and discoveries. Stay tuned!
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