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| AnswerTests | Answer Tests |
| any_of_exprs | Test that the user has entered one of several possible expressions. |
| bye | Exit swirl. |
| calculates_same_value | Test that the user's expression evaluates to a certain value. |
| delete_progress | Delete a user's progress |
| email_admin | Send diagnostic email to swirl admin |
| expr_creates_var | Test that a new variable has been created. |
| expr_identical_to | Test that the user has entered a particular expression. |
| expr_is_a | Test that the expression itself is of a specific 'class'. |
| expr_uses_func | Test that a particular function has been used. |
| func_of_newvar_equals | Test the result of a computation applied to a specific (user-named) variable created in a previous question. |
| info | Display a list of special commands. |
| InstallCourses | Installing Courses |
| install_course | Install a course from The swirl Course Network or install a course from a local .swc file. |
| 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 the official course repository |
| is_robust_match | Recursively expand both the correct expression and the user's expression and test for a match. CAUTION: May raise errors, as in rmatch_calls. |
| main | Return to swirl's main menu. |
| 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. |
| reset | Start over on the current script question. |
| restart | Restart the current swirl lesson. |
| rmatch_calls | Recursively expand match calls in an expression from the bottom up. |
| select_language | Select a language |
| skip | Skip the current unit of instruction. |
| submit | Submit the active R script in response to a question. |
| swirl | An interactive learning environment for R and statistics. |
| swirl_options | Get swirl options |
| uninstall_all_courses | Uninstall all courses |
| uninstall_course | Uninstall a course |
| val_has_length | Test that the value of the expression has a particular 'length'. |
| val_matches | Test that the user's expression matches a regular expression. |
| var_is_a | Test that the value of the expression is of a specific class. |
| zip_course | Zip a course directory |