in reply to Re^2: reading files to different output files.
in thread reading files to different output files.

Or, without any modules:

my @fhs = map { open my $FH, '<', $_ or die $!; $FH } @filenames;

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,