You're reading from Linux Command Line and Shell Scripting Bible - Third Edition

Product typeBook

Published inJan 2015

PublisherWiley

ISBN-139781118983843

Edition3rd Edition

Tools

Linux

Concepts

Shell Scripting

Authors (2):

Richard Blum

Christine Bresnahan

View More author details

Pipes

Sometimes, you need to send the output of one command to the input of another command. This is possible using redirection, but somewhat clunky:

$ rpm -qa > rpm.list
$ sort < rpm.list
abrt-1.1.14-1.fc14.i686
abrt-addon-ccpp-1.1.14-1.fc14.i686
abrt-addon-kerneloops-1.1.14-1.fc14.i686
abrt-addon-python-1.1.14-1.fc14.i686
abrt-desktop-1.1.14-1.fc14.i686
abrt-gui-1.1.14-1.fc14.i686
abrt-libs-1.1.14-1.fc14.i686
abrt-plugin-bugzilla-1.1.14-1.fc14.i686
abrt-plugin-logger-1.1.14-1.fc14.i686
abrt-plugin-runapp-1.1.14-1.fc14.i686
acl-2.2.49-8.fc14.i686
[...]

The rpm command manages the software packages installed on systems using the Red Hat Package Management system (RPM), such as the Fedora system as shown. When used with the -qa parameters, it produces a list of the existing packages installed, but not necessarily in any specific order. If you're looking for a specific package or group of packages, it can be difficult to find it using the output of the rpm command.

Using the...

The rest of the page is locked

You have been reading a chapter from

Linux Command Line and Shell Scripting Bible - Third Edition

Published in: Jan 2015Publisher: WileyISBN-13: 9781118983843

Authors (2)

Richard Blum

Richard Blum has more than 25 years as a network and systems administrator, currently managing Microsoft, Unix, Linux, and Novell servers for a network with more than 3,500 users. He has developed online programming and Linux courses that he teaches to students worldwide.
Read more about Richard Blum

Christine Bresnahan

Christine Bresnahan has worked in the IT industry for more than 30 years and is currently an adjunct professor of Python programming and Linux system administration classes at Ivy Tech Community College in Indianapolis. She is the co-author of Linux Bible, Eighth Edition, and Linux Command Line and Shell Scripting Bible.
Read more about Christine Bresnahan

Personalised recommendations for you

Based on your interests and search pattern

Designing and Implementing Microsoft Azure Networking Solutions

Designing and Implementing Microsoft Azure Networking Solutions Exam Ref AZ-700 is an all-encompassing guide to the AZ-700 exam and contains all the information you need to succeed in the world of virtual networking with Azure. With this book, you will be fully prepared for the exam and the world of cloud networking.

BookAug 2023524 pages

Microsoft 365 Security, Compliance, and Identity Administration

The Microsoft 365 Security, Compliance, and Identity Administration is a comprehensive guide that helps you employ Microsoft 365's robust suite of features and empowers you to optimize your administrative tasks.

BookAug 2023630 pages

Zero Trust Overview and Playbook Introduction

Get started on Zero Trust with this step-by-step playbook and learn everything you need to know for a successful Zero Trust journey with tailored guidance for every role, covering strategy, operations, architecture, implementation, and measuring success. This book will become an indispensable reference for everyone in your organization.

BookOct 2023240 pages

The Self-Taught Cloud Computing Engineer

This self-study book helps you master multiple clouds, including AWS, Azure, and GCP, and serves as a roadmap to becoming a certified cloud computing expert. The book will guide you to develop a professional cloud career by helping you build a broad cloud knowledge base, developing hands-on cloud computing skills, and getting cloud certified.

BookSep 2023472 pages

Technology Operating Models for Cloud and Edge

This book will help you build and create ownership of a technology operating model, as well as connect your leadership with engineering and operations, keeping your internal and external customers in mind. It provides practical tips on why, where, and how to make the cloud and edge platform paradigm sing for you, your team, and your organization.

BookAug 2023228 pages

Azure Architecture Explained

Azure is the preferred platform to build mission-critical and secure apps. This book provides comprehensive coverage of essential Azure products, services, and solutions vital for every solution architect's success. Elevate your knowledge and master the critical components of Azure to excel in your role with Azure Architecture Explained.

BookSep 2023446 pages

Pentesting Active Directory and Windows-based Infrastructure

This practical guide helps you explore the pentesting of Microsoft infrastructure in detail, and enhances your offensive skillset by showing you the different ways to perform security assessment. This book will help blue teamers and IT engineers get up to speed with possible security issues they may encounter in their Windows environments.

BookNov 2023360 pages

Practical Ansible

In Practical Ansible, you'll work with the latest release of Ansible and learn to solve complex issues quickly with the help of task-oriented scenarios. You'll start by installing and configuring Ansible to automate monotonous and repetitive IT tasks and get to grips with concepts such as playbooks, inventories, plugins, collections, and network modules.

BookSep 2023420 pages

Windows 11 for Enterprise Administrators

Microsoft’s launch of Windows 11 is a step toward satisfying the enterprise administrator’s needs for better management and enhanced user experience customization. This book provides the enterprise administrator with the knowledge needed to fully utilize the advanced feature set of Windows 11 Enterprise.

BookOct 2023286 pages

The Linux DevOps Handbook

This book is for software and IT professionals seeking knowledge on Linux systems and DevOps practices. This book will provide you with guidance and tools to learn and gain proficiency in managing Linux-based infrastructures and knowledge of DevOps.

BookNov 2023428 pages2