Depending on your distribution of DataCleaner, you will have one of these CLI executables included:
datacleaner-console.exe , which is a Windows-only executable.
datacleaner.cmd , which is a script to start DataCleaner in Windows.
datacleaner.sh , which is a script to start DataCleaner in Unix-like systems, like Linux and Mac OS.
If you're running DataCleaner in Java Webstart mode, then there is no Command-Line Interface!