# Command-Line Interface

There are two harness editions:

- The test harness is a full-featured test system that runs on a computer that has at least the resources of a laptop.
- The lite harness provides a subset of test harness features and can run on devices lacking some resources required to run the test harness.

The test harness has two interfaces, a command-line interface (CLI), and a graphical user interface (GUI).

- The command-line interface provides scriptable test harness functionality for configuring and executing tests and creating reports. Information about using the command-line interface can be found in the following topics:
  - Command-Line Summary
  - Set-up Commands
  - Task Commands
  - Desktop Commands
  - Information Commands
  - Legacy Commands
- The GUI interface is more suitable for interactive test harness users.

The lite harness has a command-line interface that supports most test harness CLI commands except those that activate a graphics component (such as online help).

See Troubleshooting for information about the codes displayed when the harness exits after running tests using the command-line interface.

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