The Linux command line is for power users. It is not for the faint of heart or for people who are afraid to take a risk.
If you are new to Linux and are afraid to take the plunge into using the command line interface, then this tutorial is a good start.
What is Linux and CLI? 💻
Linux is an open source operating system that is used on everything from smart phones to main frame computers.
Linux provides a command line interface (CLI) that provides a quick and powerful way to control and manipulate your computer. Once mastered, the Linux CLI can save you time and provide a powerful tool to aid in your daily tasks.
Commands
The command line can be intimidating but learning the basics will give you access to a world of scripts and automation tools that will make your life a lot easier and more productive.
The Basics: You will be using the command line to type various commands and tasks. Commands are what Linux runs. In Linux, the Command Line can be used for various things.
To start, open up a terminal. Now, let's try using some basic Linux commands!
Most of these commands are applicable for all Linux distributions. Linux is case sensitive (capitalization matters).
Navigation
ls List directory
cd DIR Change the current directory to the DIR directory
cd ~ Change to home directory
cd / Change the current directory to the root directory
cd .. Go one directory lower
pwd Show name of current working directory
File Commands
mkdir -p DIR Create directory DIR
rm FILE Remove FILE
rm -r DIR Remove DIR and its contents recursively
rm -f FILE Force remove FILE
System Info
date Print or set the system date and time
cal Displays a calendar
uptime Tell how long the system has been running
w Show who is logged on and what they are doing
whoami Print effective userid
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