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Essential Linux Commands

You're reading from   Essential Linux Commands 100 Linux commands every system administrator should know

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Product type Paperback
Published in Nov 2023
Publisher Packt
ISBN-13 9781803239033
Length 250 pages
Edition 1st Edition
Tools
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Author (1):
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Paul Olushile Paul Olushile
Author Profile Icon Paul Olushile
Paul Olushile
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Table of Contents (20) Chapters Close

Preface 1. Part 1:Server Installations and Management Commands
2. Chapter 1: Getting a CentOS Server Up and Running FREE CHAPTER 3. Chapter 2: Linux User and Group Commands 4. Chapter 3: File Compression and Archival Commands 5. Part 2:Frequently Used Commands – Part 1
6. Chapter 4: Format and Disk Space Commands 7. Chapter 5: Linux Permissions Commands 8. Chapter 6: Filesystem Mount and Manipulation Commands 9. Part 3:Frequently Used Commands – Part 2
10. Chapter 7: File Content and Conversion Commands 11. Chapter 8: Linux SWAP Commands 12. Chapter 9: Linux Monitoring and Debugging Commands 13. Chapter 10: Linux IPTABLES and Network Commands 14. Chapter 11: File Transfer, Downloading, and Managing Log Files 15. Part 4:Linux Security and the Cloud
16. Chapter 12: Exploring Linux Security 17. Chapter 13: Linux in the Cloud 18. Index 19. Other Books You May Enjoy

Working on our EC2 instance

In this section, we are going to make use of some commands similar to those used in CentOS and apply them to perform some short tasks. So, let’s begin:

  • Updating and upgrading:

    You’ve just launched your CentOS 8 Linux instance on AWS. To ensure it’s up to date, use the following commands:

Figure 13.25 – Updating and upgrading

Figure 13.25 – Updating and upgrading

Here’s the transaction summary:

Figure 13.26 – Transaction summary

Figure 13.26 – Transaction summary

The summary indicates that one package is in the process of being installed, 42 packages are undergoing updates, and the cumulative download size amounts to 110 MB. The user is prompted to decide whether to continue with the installation process.

When it comes to updating software packages, package managers serve as essential tools for users to effortlessly manage software installation, updates, and removal on their systems. These utilities offer the flexibility...

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