# demo_begin

begin a demonstration

## Séquence d'appel

    demo_begin()

## Description

The function demo_begin is used to begin a demonstration. It sets the script and the values in mode of non display on the console, save the environment variables in a temporary file and save the width of the console. This function shall be used with the function demo_end.

## Voir Aussi

- demo_end
- demo_run
- demo_message