perlquestion shadowfox I have variables used in math operations that have some extra non-digit data, usually just a letter following them. The math works fine, but naturally I get warnings about the argument not being numeric. <code>use warnings; while ($line = <DATA>){ chop($line); ($a,$b,$c,$d,$e,$f,$g)=split(",",$line); $sum = ($a+$b+$c+$d+$e+$f+$g); print $sum; } __END__ 86f,934e,92,102i,14,19,222,</code> The value at the end, 1469 is accurate but I'd like to take out the letters and avoid the warnings as they are not needed in my data context. <code>Argument "934e" isn't numeric in addition (+) at test.pl line 7, <DATA> line 1. Argument "86f" isn't numeric in addition (+) at test.pl line 7, <DATA> line 1. Argument "102i" isn't numeric in addition (+) at test.pl line 7, <DATA> line 1. 1469</code> I tried using (s/\D//g) in various ways but I'm just getting it wrong, can this be easily done without altering each variable before the math operation individually? Please don't lecture me on strictures, this is a small example of my problem, not polished code.