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| author_lesson | Author a swirl lesson. |
| bye | Exit swirl. |
| info | Display a list of special commands. |
| install_course_directory | Install a course from a course directory |
| install_course_dropbox | Install a course from a zipped course directory shared on Dropbox |
| install_course_github | Install a course from a GitHub repository |
| install_course_google_drive | Install a course from a zipped course directory shared on Google Drive |
| install_course_url | Install a course from a url that points to a zip file |
| install_course_zip | Install a course from a zipped course folder |
| install_from_swirl | Install a course from swirl's official list of courses |
| nxt | Begin the upcoming question or unit of instruction. |
| omnitest | Test for a correct expression, a correct value, or both. |
| play | Tell swirl to ignore console input for a while. |
| skip | Skip the current unit of instruction. |
| swirl | An interactive learning environment for R and statistics. |
| uninstall_course | Uninstall a course |
| zip_course | Zip a course directory |