C:\> help
The black window is not a curse. It is a wand.
Practice the Windows command line in a safe sandbox right here in your browser, with every command from The Wizard's Reference series explained, free.
C:\Users\apprentice> echo I found the door. I found the door. C:\Users\apprentice>
The first incantation in Book One. Type it yourself in the practice shell →
The series
A shelf of spellbooks for the everyday machine
Each volume takes one corner of Windows and makes it plain. Book One is written; the rest are in the forge.
How every recipe works
Look it up. Read it once. Cast it.
- Why it mattersA plain reason the thing is worth knowing.
- The explanationWhat's actually going on, no assumed knowledge.
- Try itA short incantation you can type right now.
- Common mistakesHow beginners trip, so you don't panic.
- See alsoWhere to pull the thread next.
From the Codex
Every command, on one card
The Command Codex gives each command a quick reference card — what it does, its flags, and a practice line to memorize.
cd / chdirDisplays the current working directory path.dirList files and folders in the current directory.treeDisplay the folder structure of a directory graphically.pushd / popdSave the current directory, then return to it later.setxPermanently set an environment variable — unlike set, it persists after the window closes.tasklistList currently running processes.
The newsletter
Hear when the next book leaves the forge
Launch news for each volume — and the day Book One reaches Amazon. Nothing else.