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The Ultimate Linux Shell Scripting Guide

The Ultimate Linux Shell Scripting Guide

By : Donald A. Tevault
4.8 (5)
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The Ultimate Linux Shell Scripting Guide

The Ultimate Linux Shell Scripting Guide

4.8 (5)
By: Donald A. Tevault

Overview of this book

Embark on a comprehensive journey through command shells with this hands-on manual. While Bash is a Linux staple, Z shell and PowerShell are rising stars, applicable to Linux, macOS, and Unix. Progress seamlessly through chapters, each building on the last, creating a solid foundation. Learn through a unique approach: concepts, examples, and interactive labs. These labs, nearly a hundred strong, form the core of experiential learning, essential for script creation. Focusing on Linux commands and their scripting applications, this manual is universally relevant across Linux and select Unix-like systems. It goes beyond theory, offering practical scripts for real-world Linux administration. Scripts are designed for manageability, aiding learning and troubleshooting. The goal is to nurture the ability to craft intelligent, functional shell scripts. While centered on Bash, this book offers a peek into the future with Z Shell and PowerShell, expanding your skills and adaptability. This book is systematically structured and engaging so that it will guide you to master command shells, equipping you for real-world Linux challenges.
Table of Contents (26 chapters)
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24
Other Books You May Enjoy
25
Index

Using paste

Instead of joining two or more files together end-to-end as cat does, paste joins them together side-by-side. This is handy when you have two or more files of columnar data, and you want to look at all of the data in one display. Go ahead and create the two text files that you see in the following diagram Then try out the paste command that you see in the diagram.

Figure 6.5: Pasting two files together with paste

There are two options that you can use with paste. The serial option, set with the -s switch, allows you to view the columns of data horizontally. Pasting the myfile_1.txt and myfile_2.txt with the -s option looks like this:

[donnie@fedora ~]$ paste -s myfile_1.txt myfile_2.txt
one	three	five	seven	nine
two	four	six	eight	ten
[donnie@fedora ~]$

The delimiter option, set by the -d switch, allows you to change how the columns are separated. If you leave out the -d switch, the columns of the pasted display will be separated by tabs, as you see...

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