cheat sheet of some commonly used Linux commands:

Navigation:

pwd: Print working directory
ls: List files and directories
-l: Long format
-a: Show hidden files
cd: Change directory cd ..: Move up one level cd ~: Go to home directory File Operations: cp: Copy files or directories cp source destination mv: Move or rename files/directories mv source destination rm: Remove files or directories -r: Recursive (for directories) -f: Force (no prompt) File Viewing and Editing: cat: Concatenate and display file content more or less: Display content one screen at a time nano or vim: Text editors nano filename vim filename

Searching:

grep: Search for a pattern in files grep pattern filename find: Search for files and directories find /path/to/search -name filename System Information: uname: Display system information -a: All information df: Display disk space usage du: Display file and directory space usage Process Management: ps: Display information about processes ps aux: Detailed information kill: Terminate a process kill PID User Management: whoami: Display current user passwd: Change password useradd: Add a new user userdel: Delete a user Permissions: chmod: Change file permissions chmod permissions filename chown: Change file owner chown owner:group filename Networking: ifconfig: Display and configure network interfaces ping: Test network connectivity ping hostname netstat: Display network connections -tuln: Show listening ports Package Management: apt (Debian/Ubuntu):

apt update: Update package lists apt upgrade: Upgrade installed packages apt install package: Install a package apt remove package: Remove a package yum (Red Hat/CentOS):

yum update: Update installed packages yum install package: Install a package yum remove package: Remove a package These are just a few basic commands. Each command has various options and parameters; you can use the manual pages (man command) for more detailed information. For example, man ls will show you the manual for the ls command.