1.2 Command Line Options ======================== 'bc' takes the following options from the command line: '-h, --help' Print the usage and exit. '-l, --mathlib' Define the standard math library. '-w, --warn' Give warnings for extensions to POSIX 'bc'. '-s, --standard' Process exactly the POSIX 'bc' language. '-q, --quiet' Do not print the normal GNU 'bc' welcome. '-v, --version' Print the version number and copyright and quit.