May 2014
Intermediate to advanced
150 pages
3h 18m
English
Content preview from Penetration Testing with the Bash shellBecome 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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Using pipes
All we've been discussing in this section is redirecting output command to another file; what about redirecting output from one command to another? Well that's exactly what the next section is for.
Note
Pipes are interprocess communication mechanisms, which are mechanisms that allow processes to communicate with one another, in operating systems that allow output from one process to be funneled from to another process as input. In other words, you can turn the standard output of one program into the standard input of another.
In fact, many pipes work exactly this way by duplicating file descriptor 0 for one process and allowing another process to write to it.
The following command shows how to use a pipe in bash speak:
[command line] | ...Become 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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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.