The FindBugs Command Line Interface (or Text UI) can be used to analyze an application for bugs non-interactively. Each bug instance will be reported on a single line. All output is written to the standard output file descriptor. Chapter 8, Filter Files explains how bug reports may be filtered in order to get only the output you're interested in.

See Section 3, “Command Line Options” in Chapter 2, Installing and Running FindBugs™ for a description of how to invoke the Command Line Interface.