DevOps Lecture: Introduction to Linux

Introduction

• Linux: Starting from the basics. Mastery in the next 2-3 lectures.
• Unix Project: Started by Bell Labs in 1964 for a multi-user OS.
• Creators of Unix: Dennis Ritchie and Ken Thompson.

From Unix to Linux

• Unix: Began in 1969, with free source code.
• Origin of Linux: Linus Torvalds at Helsinki University in 1991.
• Meaning of Linux: Not a clone of Unix, but new code.

Linux and GNU

• GNU Movement: Linux was combined with GNU under free software.
• Linux Kernel: Core part of the OS.
• Linux OS: Combination of Kernel + GNU software.

Linux Distributions

• Distributions: Different versions of Linux, like Red Hat, Fedora, Debian.
• Ubuntu, CentOS: Popular free distributions.

Linux vs Windows

• Free vs Paid: Linux is free, whereas Windows has a licensing fee.
• Security: Less likelihood of viruses and hacking on Linux.
• Multi-user, Multitask: Many users can work on one Linux server.

Advantages of Linux

• Open Source: Code available to everyone.
• Secure: Fewer virus attacks, secure file system.
• Lightweight: Uses less RAM, more performance.
• Versatile: Variety of distributions, something for every need.

Conclusion

• Importance of Linux: Essential in technical and business environments.
• Further Study: More lectures for mastery of Linux.

Special Tip

• CLI and GUI: Linux's CLI is popular, but GUI is also available.

Through these Linux notes, you can understand the basic information of this operating system and use it effectively.