Laravel Artisan commands extend Illuminate\Console\Command and leverage Symfony's ProgressBar component for visual task progress. The $this->output->progressBar($total) method creates a console progress bar that updates via advance() calls during loops. Commands define signatures with {placeholders} for arguments/options, enabling php artisan command:import users.csv --dry-run. Theory: Progress bars provide real-time feedback for long operations (file imports, DB migrations) preventing user uncertainty during CLI execution. Symfony's output component handles terminal detection, ANSI colors, and redraw logic automatically.
Code example:
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