Book Image

Learning Raspbian

By : William Harrington
Book Image

Learning Raspbian

By: William Harrington

Overview of this book

Table of Contents (15 chapters)
Learning Raspbian
About the Author
About the Reviewers

Redirection in bash

One of the more advanced features of bash are the redirection operators. These operators allow you to divert the input or output of a command to another command or file. While this sounds simple, it is an extremely powerful feature. There are several redirection operators built into bash, as shown here:




This is a general-purpose command that chains similar to >


This redirects the output of a command to a file


This reads a file and passes it to the command


This appends the output of the command to a file

Redirection operators

The | operator is a general-purpose command-changing tool. A simple example of this is to use it with cat and the program more. The more program is a simple program that lets you move backward and forward throughout a file on the screen in order to read it. The more command gets the data that you want to read from the cat command. The | operator connects two programs together.

The more and...