Book Image

Mastering Ubuntu Server - Fourth Edition

By : Jay LaCroix
4.7 (7)
Book Image

Mastering Ubuntu Server - Fourth Edition

4.7 (7)
By: Jay LaCroix

Overview of this book

Ubuntu Server is taking the server world by storm - and for a good reason! The server-focused spin of Ubuntu is a stable, flexible, and powerful enterprise-class distribution of Linux with a focus on running servers both small and large. Mastering Ubuntu Server is a book that will teach you everything you need to know in order to manage real Ubuntu-based servers in actual production deployments. This book will take you from initial installation to deploying production-ready solutions to empower your small office network, or even a full data center. You'll see examples of running an Ubuntu Server in the cloud, be walked through set up popular applications (such as Nextcloud), host your own websites, and deploy network resources such as DHCP, DNS, and others. You’ll also see how to containerize applications via LXD to maximize efficiency and learn how to build Kubernetes clusters. This new fourth edition updates the popular book to cover Ubuntu 22.04 LTS, which takes advantage of the latest in Linux-based technologies. By the end of this Ubuntu book, you will have gained all the knowledge you need in order to work on real-life Ubuntu Server deployments and become an expert Ubuntu Server administrator who is well versed in its feature set.
Table of Contents (26 chapters)
24
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25
Index

Understanding Bash history

Speaking of history, let’s dive right into that concept. By default, Bash keeps track of all the commands you enter during your sessions, so that if you need to recall a previously entered command, you can definitely do so. History also serves another purpose, and that is seeing what other users have been up to. However, since users can edit their own history to cover their tracks, it’s not always useful for that purpose.

You may have already seen Bash’s history feature in some form, if you’ve ever pressed the up and down arrows on the shell to recall a previously used command. If you didn’t already know you could do that, go ahead and give it a try. You should see that by pressing the up and down arrows, you can cycle through commands that you’ve used previously.

Another trick is that you can also simply type history in the shell and see a list of previously entered commands, as shown in Figure 6.2:

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