Linux Basic Commands

What is Linux?

Linux is a free and open-source operating system based on the Unix operating system. It was created by Linus Torvalds in 1991 and has since grown to become one of the most popular and widely used operating systems in the world.

Linux is known for its stability, security, and flexibility. It can be used on a wide range of devices, from smartphones and tablets to servers and supercomputers. Linux is also popular in the web hosting industry, powering many websites and web applications.

One of the key features of Linux is that it is open-source, meaning that its source code is freely available to anyone who wants to use it, modify it, or contribute to its development. This has led to a large and active community of developers and users who work together to improve and enhance the operating system.

Linux comes in many different distributions or "distros," each with its own unique set of features and applications. Some popular Linux distros include Ubuntu, Debian, Fedora, and CentOS.

Basic Commands:

ls - list files and directories in the current directory.

cd - change directory to the specified directory.

mkdir - create a new directory.

rm - remove a file or directory.

cp - copy a file or directory.

mv - move or rename a file or directory.

cat - concatenate and display the contents of a file.

grep - search for a pattern in a file or files.

sudo - execute a command with superuser privileges.

ps - display information about currently running processes.

top - display information about resource usage by processes.

chmod - change the permissions of a file or directory.

chown - change the owner of a file or directory.

tar - create or extract a tar archive.

ssh - connect to a remote server over SSH protocol.