## Submodule 2.1: Popular tools

• Terminal
• Node.js - NPM

In simple words, Terminal is a software which takes the command from your keyboard and passes it to the Operating System of your computer.  It's also called Command Line Interface - CLI or Windows PowerShell.

In the following image, you can see the ways you can enable Terminal, either from the Menu orfrom the Taskbar of your computer.

After enabling the Terminal a new window appears on your screen.

The basic commands of Terminal

• Write help and press Enter to see a lot of things you could do!
• Write clear and press Enter to start again!
• Write pwd and press Enter to see the name of the working directory. [/home/ellak]
• Write ls and press Enter to list all files and directories in the working directory.
• Suppose that we want to move to the Desktop directory. Write cd De and press the Alt tab. You will see that the Terminal auto-completes the expression. Press Enter to move into the Desktop directory.
• Write again cd and drag a folder from the Desktop and drop it into the Terminal to see what will happen after pressing Enter. [This command will open the folder!]
• Write cd.. and press Enter to move upwards in the hierarchy of the directories.
• Write exit and press Enter to close the Terminal window.