August 2019
Beginner to intermediate
798 pages
17h 2m
English
Content preview from Mastering Go - Second Edition
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The cobra package
cobra is a very handy and popular Go package that allows you to develop command-line utilities with commands, subcommands, and aliases. If you have ever used hugo, docker, or kubectl you will understand immediately what Cobra does, as all these tools were developed using cobra.
As you will see in this section, commands in cobra can have one or more aliases, which is very handy when you want to please both amateur and experienced users. cobra also supports Persistent Flags and Local Flags, which are flags that are available to all commands and flags that are available to a given command only, respectively. Also, by default, cobra uses viper for parsing its command-line arguments.
All cobra projects follow the same development ...
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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.