March 2018
Beginner to intermediate
416 pages
9h 24m
English
Content preview from Learning AWK Programming
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A single number followed by a comma in brackets
A single number followed by a comma in brackets, {n,}, means that the preceded regular expression is repeated at least n number of times. For example, to match the occurrence of the minimum 3 numbers between a and b in a line, we can use the following:
$ awk '/a[0-9]{3,}b/' interval_regex.txt
The output on execution of the preceding code is as follows:
a123ba1234ba12345ba1233456ba111ba111111b
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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.