# Get Help with Spotfire Enterprise Runtime for R

You can get complete help for TERR from the console's command line.

The TERR help landing page, available in a web browser instance, provides general information and reference. From the TERR console command-line, type `help.start()`. From the resulting web page, you can select one of the following.

- Browse the language reference by package.
- Search the language reference for a specific function.
- Open and read product documentation and technical notes available on docs.tibco.com.
- Review the differences between TERR and open-source R.
- Review the latest information about implemented functions by category.

You can also get command-line help for TERR from the shell command line. At the command prompt, type `TERR --help`.

Note: For this command to work, you must have the engine location in your path, or you must run the command from its bin directory.