February 2004
Beginner
204 pages
5h 40m
English
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m4
m4 is a macro-processing language. It locates keywords within a file and substitutes values for them. For example, given this file:
$ cat myfile My name is NAME and I am AGE years old ifelse(QUOTE,yes,No matter where you go... there you are)
see what m4 does with substitutions for NAME, AGE, and QUOTE:
$ m4 -DNAME=Sandymyfile My name is Sandy and I am AGE years old $ m4 -DNAME=Sandy -DAGE=25myfile My name is Sandy and I am 25 years old $ m4 -DNAME=Sandy -DAGE=25 -DQUOTE=yesmyfile My name is Sandy and I am 25 years old No matter where you go... there you are
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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.