08-08-2013, 11:12 AM
If you really need to use the number index instead, this could be done VERY easily with a small "position lookup" code in e.g. shell script or other programming language. I mean, a small wrapper that transforms the number into a letter, you then can call you wrapper e.g. as:
./myWrapper.sh 13
and the myWrapper.sh script makes the transformation and calls maskprocessor w/ -s M argument.
./myWrapper.sh 13
and the myWrapper.sh script makes the transformation and calls maskprocessor w/ -s M argument.