Book Image

CompTIA Linux+ Certification Guide

By : Philip Inshanally
Book Image

CompTIA Linux+ Certification Guide

By: Philip Inshanally

Overview of this book

The Linux+ certification provides a broad awareness of Linux operating systems, while giving professionals an upper hand in the IT industry. With this certification, you’ll be equipped with the all-important knowledge of installation, operation, administration, and troubleshooting services. This CompTIA Linux+ Certification Guide will give you an overview of the system architecture. You’ll understand how to install and uninstall Linux distributions, followed by working with various package managers. You’ll then move on to manipulating files and processes at the command-line interface (CLI) and creating, monitoring, killing, restarting, and modifying processes. As you progress, you’ll be equipped to work with display managers and learn how you can create, modify, and remove user accounts and groups, as well as understand how to automate tasks. The last set of chapters will help you configure dates and set up local and remote system logging. In addition to this, you’ll explore different internet protocols, and delve into network configuration, security administration, Shell scripting, and SQL management. By the end of this book, you’ll not only have got to grips with all the modules you need to study for the LX0-103 and LX0-104 certification exams, but you’ll also be able to test your understanding with practice questions and mock exams.
Table of Contents (23 chapters)
19
Mock Exam - 1
20
Mock Exam - 2

Summary

In this chapter, we dealt with various aspects relating to handling processes from within the shell. We started off with the ps command. The methods to expose processes currently running in the shell were shown. Next, we saw how to print all processes running on the system. This was followed up by exposing the commands used by each process. We then focused on filtering the output for a particular user, also by the user ID. After that, we touched on filtering for a process, also filtering by the process ID. In addition to this, we tackled filtering by groups. This was followed by changing the display into a forest layout.

Furthermore, we saw how to pull memory and CPU information; we called on the watch command to update the results in real time. Finally, we saw how to terminate a process using the ps command in combination with the kill command. Next, we touched on the...