Basics of Linux

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Shell – Shell is a program that takes command from the keyboard and gives them to operating system to perform.

We also called it as a command line interface (CLI).

Terminal – Terminal a tool which you can used to pass a shell command. It’s lets you interact with shell.

File System –

File system in Linux arranged in a hierarchical directory structure like tree diagram.

Root (/) is a main directory under which we have other directories.

Below are the directories under root file system,

Basic Commands -

$ PWD – To check present working Directory.

$ cd – Change directory

$ ls – List the files or directories.

 

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