CLI 101

Command Line Interface Introduction

Overview

  • What is a CLI?
  • Why use it?
  • How to use it
  • How to navigate the file system

What is a CLI?

CLI stands for command line interface. A way to communicate directly with a computer.

Why use a CLI?

  • Can perform actions more efficiently
  • Access areas of the computer that aren’t accessible in a GUI
  • Configure your machine for programming

How to Use CLI

Running Commands

pwd

Using Arguments

ls
ls -long
ls -l

Creating Files & Directories

mkdir {name}
touch {name}

What do these commands do?

git status

rm -rf ./Sample

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

How to Navigate the File System

Let’s create the following project

project structure

File Structure

project structure

Commands

pwd
ls
touch
mkdir

Putting Repos in One Place

cd ~
mkdir repos

Updating the Finder Sidebar

sidebar

Demo

CLI Summary

  • Commands (pwa)
  • Arguments (ls -la)
  • Move around (cd ../)
  • Making files (touch)
  • Making directories (mkdir)
  • Deleting files (rm)