What danadam said. Also: https://www.gnu.org/software/bc/manual/html_mono/bc.html#TOC23 https://www.gnu.org/software/bc/manual/html_mono/bc.html#TOC... Envir

What danadam said. Also: https://www.gnu.org/software/bc/manual/html_mono/bc.html#TOC23 https://www.gnu.org/software/bc/manual/html_mono/bc.html#TOC... Environment variables BC_ENV_ARGS