This little perl-script automatically probes all assignments (g1, g2, g3) to (gx, gy, gz) (including negated values) in EPR/ESR (electron paramagnetic resonance / electron spin resonance) and tests them for several conditions. In the end, it gives you the assignements, as well as Eg, E1, E2, V/Delta and a, b, c. It is published under the terms of the GNU General Public Licence. Thus uploading is allowed for everyone to make it easier to contribute.