flex: Miscellaneous Options

 
 16.6 Miscellaneous Options
 ==========================
 
 '-c'
      A do-nothing option included for POSIX compliance.
 
 '-h, -?, --help'
      generates a "help" summary of 'flex''s options to 'stdout' and then
      exits.
 
 '-n'
      Another do-nothing option included for POSIX compliance.
 
 '-V, --version'
      prints the version number to 'stdout' and exits.