February 2001
Beginner to intermediate
448 pages
9h 2m
English
Content preview from Korn Shell Programming by ExampleBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 7. Data Manipulation
Now that you have the power to control the flow of logic in your scripts, you can learn how to manipulate data within a script. Data can be displayed, changed, filtered, tested, compared, declared, or presented to a function. This chapter shows you some examples of the many forms of data manipulation.
Many powerful constructs are shown in this chapter. You will see several examples of filters, as well as numerous test operators for files and strings. Along the way you will see how to manipulate data in functions and use it in computations.
This chapter teaches you the following:
How to use command-line functions
How to present arguments to functions
How to use function return values
The difference between local and global ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.