25 Linux Commands Every Beginner Should Learn
Linux is one of the most important operating systems in cybersecurity, ethical hacking, cloud computing and development. Learning basic Linux commands helps beginners understand how systems work, manage files efficiently and navigate the terminal with confidence.
In this guide, we’ll explore 25 essential Linux commands every beginner should know along with simple explanations and examples.
1. pwd — Print Working Directory
The pwd command shows your current directory location inside the terminal.
Example:
pwd
2. ls — List Files and Directories
The ls command displays files and folders inside a directory.
Example:
ls
ls -la
3. cd — Change Directory
Use cd to move between directories.
Example:
cd Downloads
cd ..
4. mkdir — Create Directory
Creates a new folder or directory.
Example:
mkdir projects
5. touch — Create Empty File
Creates a new empty file quickly.
Example:
touch notes.txt
6. cp — Copy Files
Copies files and directories.
Example:
cp file.txt backup/
7. mv — Move or Rename Files
Moves or renames files and folders.
Example:
mv old.txt new.txt
8. rm — Remove Files
Deletes files or directories.
Example:
rm file.txt
rm -rf folderName
9. cat — Display File Content
Displays file content directly in terminal.
Example:
cat notes.txt
10. grep — Search Text
Searches for patterns inside files.
Example:
grep "error" log.txt
11. chmod — Change File Permissions
The chmod command changes file and directory permissions in Linux.
Example:
chmod 755 script.sh
12. chown — Change File Ownership
Changes the owner of a file or directory.
Example:
chown user:user file.txt
13. ps — Show Running Processes
Displays active running processes.
Example:
ps aux
14. top — Monitor System Processes
Shows real-time system usage and running processes.
Example:
top
15. df — Check Disk Space
Displays disk space usage information.
Example:
df -h
16. du — Check Directory Size
Shows storage usage of files and directories.
Example:
du -sh Downloads
17. ping — Test Network Connectivity
Checks connectivity between your system and another host.
Example:
ping google.com
18. netstat — Show Network Connections
Displays active network connections and ports.
Example:
netstat -tulnp
19. ssh — Secure Remote Login
Allows secure remote access to another system.
Example:
ssh user@ip_address
20. wget — Download Files
Downloads files directly from the internet.
Example:
wget https://example.com/file.zip
21. curl — Transfer Data
Used for sending requests and downloading data from servers.
Example:
curl https://example.com
22. tar — Compress and Extract Files
Creates and extracts archive files.
Example:
tar -czf archive.tar.gz folder/
23. apt — Package Management
Used for installing and updating software packages on Debian-based systems.
Example:
sudo apt update
sudo apt install nginx
24. systemctl — Manage System Services
Controls and manages Linux system services.
Example:
systemctl status nginx
25. history — View Previous Commands
Displays previously executed terminal commands.
Example:
history
## Tips for Learning Linux Faster
- Practice commands daily
- Use Linux in real projects
- Learn terminal shortcuts
- Read manual pages using man command
- Build small automation scripts
- Focus on understanding, not memorization
Linux skills are essential for cybersecurity professionals, developers and ethical hackers. Mastering basic terminal commands builds confidence and creates a strong foundation for more advanced technical learning.
Practice these commands daily and focus on understanding how Linux systems work over time.
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