Just posted new version on MARK compiled for Linux (what I refer to internally as linMARK). Latest and greatest version of the source code (meaning, the disparity between Windows MARK and linMARK is minimal). Links to the tarball, and the slightly tweaked set of docs for installing, found here:
http://www.phidot.org/software/mark/rmark/linux/
Reminder that linMARK is an 'on your own' enterprise -- meaning, if it works for you, great! If not, there are limits to how much help can be provided (since the reasons why it might not work are almost always due to the unique circumstances of your Linix distro, and how you've configured it).