How to Use man, whatis, help & info Commands in Linux | Command Line Basics for Beginners
#usermanagement, #devops2engineer #linuxcommands
The Linux command line is powerful, but only if you know how to get the right help at the right time. In this step-by-step tutorial, you’ll learn exactly how to use man, whatis, help, and info commands in Linux to find documentation, understand commands, and troubleshoot issues.
Here’s what you’ll learn:
How to read and navigate man pages like a pro.
Using whatis to quickly understand what a command does.
Getting built-in command help with help.
Finding detailed documentation with info.
Tips for searching within man pages and quitting them quickly.
Real-world examples for DevOps, sysadmins, and Linux beginners.
Whether you’re working on Ubuntu, CentOS, Fedora, or RedHat, mastering these tools will help you work faster, troubleshoot better, and never get stuck on the command line again.
Key Topics Covered:
Navigating the File System:
man [commandname] = Displays a manual page of the command specified
whatis [commandname] = A summary line for the specified command in Linux
[commandname] -- help = A detailed information of the command specified
[commandname] -- info = A detailed information of the command specified
service = Gives the status of service
systemctl list-unit-files = Lists all services
Top = Lists all services, users & server runtime
Whether you're a seasoned DevOps engineer or just starting your journey, this video will provide you with the essential knowledge to confidently work with Linux commands and streamline your workflow.
Don't miss this valuable resource!
Chapters
0:00 - 0:10 Intro
0:11 - 1:41 How to Use man, whatis, help & info Commands in Linux Explanation
1:42 - 5:05 How to Use man, whatis, help & info Commands in Linux Demonstration
5:06 - 5:28 Outro
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