# Command File

You can place routinely used configuration settings in a command file and include it in a command line. The command file is an ASCII file containing a lengthy series of commands and their arguments used in the command-line interface to modify specific configuration values before running tests.

You can use command files to configure and run tests, and write test reports either from the command line or as a part of a product build process. Using a command file allows you to repeatedly use a configuration without retyping the commands each time a test run is performed.

It is recommended that a descriptive name and the extension `.jtb` are used to help identify the function of each command file.

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