Week -1 Completed in DevOps – Linux Fundamentals Journey

One week ago, I started my 90-Day DevOps Learning Journey with a goal of building strong foundations in Linux, Cloud, and DevOps technologies.

This week was focused entirely on Linux Fundamentals, and it gave me a much better understanding of how Linux systems work.

Topics I Covered

1. Linux File System

I explored the Linux directory structure and learned the purpose of important directories such as:

• /home

• /etc

• /var

• /usr

• /bin

Understanding the file system helped me see how Linux organizes files and services.

2. Essential Linux Commands

I practiced commands such as:

• pwd

• ls

• cd

• mkdir

• touch

• cp

• mv

• rm

These commands helped me navigate and manage files efficiently.

3. File Permissions

I learned how Linux controls access through:

• Read (r)

• Write (w)

• Execute (x)

I also practiced using chmod and understood permission modes such as 755 and 644.

4. Users and Groups

I explored how Linux manages users and groups using commands like:

• whoami

• id

• groups

This helped me understand how access control works in multi-user environments.

5. Process Management

I learned how to monitor and manage running processes using:

• ps

• ps -ef

• top

• kill

I also explored system monitoring basics and process control.

Key Takeaways

• Linux is the foundation of DevOps.

• Understanding permissions and processes is essential for system administration.

• Consistent hands-on practice is more valuable than only watching tutorials.

• Documentation helps reinforce learning and track progress.

What's Next?

In Week 2, I will continue strengthening my Linux knowledge and start learning package management and system administration concepts.

Thank you for following my journey.

This is just Week 1 of my 90-Day DevOps Journey.

Happy Learning!