Terminal, Editor, and execution

Try an idea immediately

The Terminal is an immediate BASIC REPL. It evaluates statements, keeps variables between commands, and supports multiline constructs when the grammar needs them.

> PRINT 2 + 2
4
> x = 25
> PRINT x * 4
100

Try these commands in the local Web IDE Terminal. Variables persist between commands until RESET, a program RUN, a worker restart or a page reload.

OPEN, LOAD, LIST, and RUN have different jobs

OPEN

Opens a program in the Editor.

LOAD

Selects a BASIC program or project file for execution.

LIST

Displays the complete loaded source as read-only Terminal text, including unsaved edits. Source editing stays in the Editor.

RUN

Executes the loaded or current program.

These terminal commands coexist with BASIC statements. BASIC file OPEN and the terminal’s OPEN action need unambiguous dispatch; they are not interchangeable.

Find your way around

HELP lists commands and explains a named command. CATALOG lists saved projects and BASIC programs in the current workspace; PWD, CD and LS browse the current project. NEWPROJECT Demo creates a project saved on this device; PROJECT Demo opens it. IMPORT opens the local file picker. EXPORT downloads the current BASIC file; EXPORT PROJECT creates a portable .cortex project backup including assets. CLEAR clears output; RESET clears BASIC state. Use Projects for file management, startup selection and backup imports.

One runtime behind two workflows

Terminal commands and RUN now use the shared local interpreter. INPUT waits in the command field; Stop or Ctrl+C cancels it. Enter submits, Shift+Enter adds a line, arrows recall history, and Tab completes a unique suggestion. Editor Run uses the same runtime. Classic graphics, sound and BASIC-created buttons are available; modern UI controls, media and device APIs are also available, subject to browser support.