open(LIST, "intfileList.txt")||die "$!: "."intfileList.txt\n"; 
open OUT, ">RowCounts.txt"; 
foreach(<LIST>){ 
    chomp $_; 
    open(FILE,"$_") or print OUT "$!: "."$_\n"; 
    if (-e $_){ 
        @arr=<FILE>; 
        $count=@arr; 
        print OUT "$_ = $count\n"; 
    } 
}