Mastering Essential Linux Commands for DevOps Success

As I dive deeper into my DevOps journey, mastering Linux has become a priority. Here’s a breakdown of some essential commands that are useful for everyday Linux tasks and system administration:

1. ls – List directory contents, perfect for getting an overview of files.

2. cd – Change directory, a must for navigating the filesystem.

3. pwd – Print working directory, to know exactly where you are in the system.

4. mkdir – Create directories.

5. rm & rmdir – Remove files and directories.

6. cat & zcat – Concatenate and display files, with zcat handling compressed files.

7. touch – Create new, empty files.

8. head & tail – Display the beginning or end of files. Use tail -f to follow file updates.

9. less & more – View file contents with more control over scrolling.

10. cp & mv – Copy and move files/directories.

11. wc – Count words, lines, or characters in a file.

12. vi Editor – The powerful Unix/Linux text editor. Learning vi opens doors to efficient text manipulation.

13. ln – Create hard and soft (symbolic) links between files.

14. sort – Sort file contents.

15. clear – Clear the terminal screen.

16. ssh – Secure shell, essential for remote server management.

17. df – Disk space usage for filesystems.

18. ps & top – View active processes, system resource usage.

19. kill – Terminate processes by their PID.

20. free & vmstat – View system memory and virtual memory statistics.

These commands will help streamline daily tasks, improve productivity, and make life as a DevOps professional much easier. Stay tuned for more as I continue to master these tools and share my insights along the way.

Happy coding! 🚀