LINKS

Main Resources

1. Operating System Concepts, 10th Edition
   This is Operation System’s main textbook. A very fun read as well :D

Scripting Practice

1. Linux Shell Hackerrank Problems
   Learning to script really needs hands-on practice. I’ve found these hackerrank problems can be a good start.

Linux Ecosystem Related

1. Vi Basics
   Some vi tutorials because vi is very useful to edit files in virtual machine.
2. Interactive Vi Tutorial
   An interactive guide into Vi.

Other Helpful Links

1. Things about GPG
   This article explain what are the uses of GPG, very interesting read.

2. Linux File Permissions
   This article explains about file permissions in Linux.