Book Image

Linux Shell Scripting Cookbook, Second Edition - Second Edition

Book Image

Linux Shell Scripting Cookbook, Second Edition - Second Edition

Overview of this book

The shell remains one of the most powerful tools on a computer system — yet a large number of users are unaware of how much one can accomplish with it. Using a combination of simple commands, we will see how to solve complex problems in day to day computer usage.Linux Shell Scripting Cookbook, Second Edition will take you through useful real-world recipes designed to make your daily life easy when working with the shell. The book shows the reader how to effectively use the shell to accomplish complex tasks with ease.The book discusses basics of using the shell, general commands and proceeds to show the reader how to use them to perform complex tasks with ease.Starting with the basics of the shell, we will learn simple commands with their usages allowing us to perform operations on files of different kind. The book then proceeds to explain text processing, web interaction and concludes with backups, monitoring and other sysadmin tasks.Linux Shell Scripting Cookbook, Second Edition serves as an excellent guide to solving day to day problems using the shell and few powerful commands together to create solutions.
Table of Contents (16 chapters)
Linux Shell Scripting Cookbook
About the Authors
About the Reviewers

Finding files and file listing

find is one of the great utilities in the Unix/Linux command-line toolbox. It is a very useful command for shell scripts; however, many people do not use it to its fullest effectiveness. This recipe deals with most of the common ways to utilize find to locate files.

Getting ready

The find command uses the following strategy: find descends through a hierarchy of files, matches the files that meet specified criteria, and performs some actions. Let's go through different use cases of find and its basic usages.

How to do it...

To list all the files and folders from the current directory to the descending child directories, use the following syntax:

$ find base_path

base_path can be any location from which find should start descending (for example, /home/slynux/).

An example of this command is as follows:

$ find . -print
# Print lists of files and folders

. specifies current directory and .. specifies the parent directory. This convention is followed throughout the Unix...