Linux for Non-Majors: Intro/Practical

🤬 Linux commands keep tripping me up...

I'm Park Jaesung, who started development as a non-major, worked as CTO at various companies, and am currently active as an educator.

When I was a student, I used to self-study development to become a backend developer. However, the more I learned backend-related concepts, the more Linux commands held me back. I had to input Linux commands when running backend servers, and I also had to use Linux commands when installing various programs.

At first, I somehow tried to make it work by copying and pasting Linux commands that people had written on blogs, barely managing to follow along. But I was just blindly typing along without even knowing what the Linux commands I was entering meant.

As I studied this way, when I entered a command and an error occurred, it was difficult to analyze what caused the problem and also difficult to resolve it. So I decided that I needed to study Linux in earnest.

But when I actually tried to learn Linux, I bought a thick Linux book. However, this book had all the Linux-related concepts organized in it, which made it overwhelming to study everything, and I couldn't get a sense of how to apply what I learned in real practice. Looking back now, I feel like I studied a bunch of commands that aren't really used much in actual work.

That's why I created this course so that people learning Linux for the first time can learn Linux efficiently and practically. When learning something, the fastest way to learn is to focus on the content that is really frequently used and essential, and to immediately apply it in real situations. That way, you can quickly become familiar with it and learn faster.

The goal of this course is to quickly learn the Linux commands that are frequently used when developing, deploying, and operating actual services, so that you can immediately apply them in real-world situations. I hope you don't study Linux inefficiently like I did, but instead learn only the essential Linux commands that are frequently used in practice through this course.

Then I'll see you in the lecture😊

👍 Great for these types of people to listen to!

🙊 After completing this course?

🍡 Tasting

✔ Reference Notes

If you encounter any parts that are difficult to understand while studying, please feel free to ask questions right away using the Q&A board or 1:1 open chat room😊

🚨 Make sure to check what kind of person is providing the education!

If you meet the wrong doctor, you might face death because your illness can't be cured at that moment. But death is something that ends with the pain of that moment. However, if you meet the wrong teacher and receive poor education, you will suffer throughout your entire life.

Wrong education can lead you to an unwanted company, receive a smaller salary than expected, and potentially suffer for the rest of your life. Not only that, but the wrong education you received can also be passed down to your children as a legacy of poor education.

Education can truly change a person's life in a positive way, but on the other hand, it can also completely ruin a person's life. That's why I believe education carries such heavy responsibility.

Therefore, please check who is providing the education, what kind of person they are, and what path they have walked, and make a careful judgment.

👋 Hello!
I'm finally introducing myself now ( ⸝⸝•ᴗ•⸝⸝ )੭⁾⁾

Hello!

I started studying development as a non-computer science major. Before I knew it, I've already become a 6-year veteran developer! Recently, I worked as a developer while serving as CTO at two companies. Whenever I had free time, I've been doing coding lectures, company development consulting, and giving talks.

The number of students I've taught has now exceeded 24,000 (as of July 2025)! Every time I teach various students, I always feel the same way - I can't forget the sense of fulfillment from education, so I plan to continue providing education consistently on Inflearn.
(* Among students, successful candidates for Kakao Pay, Yanolja, and Woowa Brothers have been produced)

Just as I received a lot of help during difficult and challenging times, I wanted to become someone who could help many other people as well. And I felt most proud and happy when the value I created through development had a positive impact on others.

For these reasons, I hope that by giving and sharing what I have worked hard to achieve, those people can live a slightly better life.

Thank you!

🏆 Course Best Review

** This is a review written for the previously created .

🚌 Feeling overwhelmed about what order to take the courses?

'[2025] Essential Curriculum for Getting a Job as a Backend Developer (IT Service Companies)' Please refer to this!