# 12 Day: Linux & Git-GitHub Cheat 
                                             Sheet

Here s a cheat sheet for commonly used Linux and Git/GitHub commands:

**Linux Cheat Sheet:**

1. **File and Directory Operations:**
    
    * `ls`: List files and directories.
        
    * `pwd`: Print the working directory.
        
    * `cd`: Change directory.
        
    * `mkdir`: Create a new directory.
        
    * `touch`: Create an empty file.
        
    * `rm`: Remove files or directories.
        
    * `cp`: Copy files or directories.
        
    * `mv`: Move or rename files or directories.
        
2. **File Manipulation:**
    
    * `cat`: Display the contents of a file.
        
    * `more` or `less`: View file content page by page.
        
    * `head`: Display the beginning of a file.
        
    * `tail`: Display the end of a file.
        
    * `nano` or `vim` or `emacs`: Text editors to edit files.
        
3. **File Permissions:**
    
    * `chmod`: Change file permissions.
        
    * `chown`: Change file ownership.
        
4. **Process Management:**
    
    * `ps`: List running processes.
        
    * `kill`: Terminate processes.
        
    * `top` or `htop`: Monitor system resources and processes.
        
5. **Package Management:**
    
    * `apt` (Debian/Ubuntu) or `yum` (Fedora/CentOS): Install and manage software packages.
        
6. **Networking:**
    
    * `ifconfig` or `ip`: Network configuration.
        
    * `ping`: Test network connectivity.
        
    * `ssh`: Secure shell for remote access.
        
    * `scp`: Securely copy files over SSH.
        
7. **User Management:**
    
    * `useradd`: Create a new user.
        
    * `passwd`: Change user password.
        
    * `su` or `sudo`: Switch users or run commands with superuser privileges.
        
8. **File Compression and Archiving:**
    
    * `tar`: Archive files.
        
    * `gzip` or `bzip2`: Compress files.
        
    * `zip` or `unzip`: Create or extract ZIP archives.
        

**Git & GitHub Cheat Sheet:**

1. **Git Basics:**
    
    * `git init`: Initialize a new Git repository.
        
    * `git clone`: Clone a remote repository.
        
    * `git add`: Stage changes for commit.
        
    * `git commit`: Commit changes.
        
    * `git status`: Check the status of the repository.
        
    * `git log`: View commit history.
        
    * `git branch`: List branches.
        
    * `git checkout`: Switch branches or commit versions.
        
    * `git merge`: Merge branches.
        
    * `git pull`: Fetch and merge changes from a remote repository.
        
    * `git push`: Push local changes to a remote repository.
        
2. **GitHub Commands:**
    
    * `git remote add origin <repository_url>`: Link your local repository to a GitHub repository.
        
    * `git push -u origin <branch_name>`: Push your branch to GitHub.
        
    * Pull requests, issues, and other GitHub-specific actions are typically performed through the GitHub web interface.
        
3. **Git Branching and Merging:**
    
    * `git branch <branch_name>`: Create a new branch.
        
    * `git checkout -b <branch_name>`: Create and switch to a new branch.
        
    * `git merge <branch_name>`: Merge a branch into the current branch.
        
    * `git rebase <branch_name>`: Rebase the current branch onto another branch.
        
4. **Git Collaboration:**
    
    * `git fetch`: Retrieve remote changes without merging.
        
    * `git pull`: Fetch and merge remote changes.
        
    * `git fetch --all` and `git pull --all`: Fetch and merge from all remote repositories.
        
    * `git clone --recursive`: Clone a repository and its submodules.
        

Remember to replace placeholders like `<repository_url>` and `<branch_name>` with the actual values you're working with. This cheat sheet should help you get started with common Linux and Git/GitHub commands.