Book Image

Learn Linux Quickly

By : Ahmed AlKabary
Book Image

Learn Linux Quickly

By: Ahmed AlKabary

Overview of this book

Linux is one of the most sought-after skills in the IT industry, with jobs involving Linux being increasingly in demand. Linux is by far the most popular operating system deployed in both public and private clouds; it is the processing power behind the majority of IoT and embedded devices. Do you use a mobile device that runs on Android? Even Android is a Linux distribution. This Linux book is a practical guide that lets you explore the power of the Linux command-line interface. Starting with the history of Linux, you'll quickly progress to the Linux filesystem hierarchy and learn a variety of basic Linux commands. You'll then understand how to make use of the extensive Linux documentation and help tools. The book shows you how to manage users and groups and takes you through the process of installing and managing software on Linux systems. As you advance, you'll discover how you can interact with Linux processes and troubleshoot network problems before learning the art of writing bash scripts and automating administrative tasks with Cron jobs. In addition to this, you'll get to create your own Linux commands and analyze various disk management techniques. By the end of this book, you'll have gained the Linux skills required to become an efficient Linux system administrator and be able to manage and work productively on Linux systems.
Table of Contents (24 chapters)

Knowledge check

For the following exercises, open up your Terminal and try to solve the following tasks:

  1. Create a new user abraham with a user ID of 333.
  2. Create a new group admins.
  3. Add user abraham to the admins group.
  4. Make admins the group owner of the directory /home/abraham.
  5. Members of the admins group can only list the contents of the directory /home/abraham.

True or false

  1. chmod a=rxw facts.txt will have the same result as chmod 777 facts.txt.
  2. chmod a=rw facts.txt will have the same result as chmod 665 facts.txt.
  3. User elliot can have more than one primary group.