You might specify a shell command to delete reject files, copy a file, or archive target files. You can use workflow parameters and variables in the command.

When you run a workflow, the workflow passes input data to a Command task in parameters and variables. The Command task uses the input data to run the command. When the Command task finishes running, the task passes output data back to the workflow in variables.

When you configure a Command task, you specify the command to run, the input data needed by the task, and the output data that the task passes to the workflow. You also set the advanced properties that the task uses when it runs the command.