All of the below should be readily available via your package management system:
ImageMagick http://www.imagemagick.org
C, Python and Flex http://flex.sourceforge.net/.
It is recommended that you also have:
Stix fonts http://www.stixfonts.org/ or other fonts to enable a visual check of MathML output in Linux. These may be available via package management.
A PDF viewer and web browser.