Commands

Commands

The prompt understands a small subset of DOS commands plus a few easter-egg stubs. Commands are case-insensitive. Multiple commands can be chained with && (e.g. cd\emulators && dir).

Navigation

Command	What it does
dir	List the current directory
dir /w	Wide view
dir /o	Alphabetical order
dir /w /o	Wide + sorted
cd <dir>	Change directory
cd ..	Go up one level
cd \	Jump to drive root
cls	Clear the screen

Files

Command	What it does
<filename>	Execute. link: opens the URL in a new tab; data: runs as a batch script
type <file>	Print the file's data (or link) to the screen

Display

Command	What it does
echo <text>	Print text
echo off / echo on	Suppress / restore the C:\> prompt re-render after each batch line
setcol <BF>	Set background + foreground colour by two hex digits (e.g. 07 = black bg, white fg)

Stub commands

These print a one-line tongue-in-cheek response and do nothing else: exit, del, rmdir, format, chkdsk, edlin, edit, debug, attrib, quit. help prints a hint.

Source: prompt/javascript/commands.js.

Easter eggs

Command	Effect
zerocool	Switches to a cyan-on-blue colour scheme and prints a Hackers (1995) reference
dopefish	Renders the Dopefish in block characters

Keyboard

Key	Action
Enter	Submit
Backspace	Delete last character
↑ / ↓	Step through command history