Linux is a Unix-like operating system assembled under the model of free and open source software development and distribution. Fundamentals of Linux will help you learn all the essentials of the Linux command line required to get you started. The book will start by teaching you how to work with virtualization software and install CentOS 7 Linux as a VM. Then, you will get to grips with the workings of various command line operations, such as cursor movement, commands, options, and arguments. As you make your way through the chapters, the book will not only focus on the most essential Linux commands but also give an introduction to Bash shell scripting. Finally, you will explore advanced topics, such as networking and troubleshooting your system, and you will get familiar with the advanced file permissions: ACL, setuid, and setgid. Fundamentals of Linux includes real-world tasks, use cases, and problems that, as a system administrator, you might encounter in your day-to-day activities.
Author(s): Oliver Pelz
Publisher: Packt Publishing
Year: 2018
Language: English
Pages: 236
Title Page
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Fundamentals of Linux
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Preface
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Introduction to Linux
An overview of the Linux system
Virtualization
Installing VirtualBox and CentOS
Working with VirtualBox
Connecting VMs through SSH
Summary
The Linux Command Line
Introducing the command line
File globbing
Quoting commands
Getting help
Working with the Linux shell
Understanding standard streams
Understanding regular expressions
Working with sed
Working with awk
Navigating the Linux filesystem
Summary
The Linux Filesystem
Understanding the filesystem
Working with file links
Searching for files
Working with users and groups
Working with file permissions
Working with text files
Working with VIM text editor
Summary
Working with the Command Line
Essential Linux commands
Additional programs
net-tools
Nmap
links
iotop
iftop
htop
lsof
Understanding processes
Cloning
Signals
kill
hang-up
Working with Bash shell variables
Introduction to Bash shell scripting
Implementing Bash shell scripting
Automating script execution
Summary
More Advanced Command Lines and Concepts
Basic networking concepts
Installing new software and updating the system
Introduction to services
Basic system troubleshooting and firewalling
Introducing ACLs
setuid, setgid and sticky bit
setuid
setgid
sticky bit
Summary
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