November 2013
Intermediate to advanced
224 pages
6h 9m
English
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Choosing Names for Options and Commands
In Chapter 2, Be Easy to Use, we learned that OptionParser allows
us to create multiple options that mean the same thing. We used this feature
in our database backup script, db_backup.rb, by allowing
both -i and --iteration
to signify an “end-of-iteration” backup. Why does OptionParser
have this feature, and why did we use it?
Naming Options
This question is better posed in two parts: “Why did we provide a short-form option?” and “Why did we provide a long-form option?” Short-form options allow frequent users who use the app on the command line to quickly specify things without a lot of typing. Long-form options allow maintainers of systems that use our app to easily understand what the options ...
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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.