So I tried the code you provided,and while it did pipe all the files in, in listed them all in one line in the results file. 
A sample of what I received:
File#   A    B   C
1       5    6   3

What I wanted:
File#   A    B   C
1       2    1   0
2       2    4   2
3       1    1   1
This is my code: 
#!C:\Perl
use strict;
BEGIN{
    @ARGV=map glob, @ARGV;
}
open(RES, ">>results.txt");
print RES "File Number    A    A%    B    B%    Null    Null%\n";
my $A=0; #these three lines set my initial counts at zero
my $B=0;
my $null=0;
my $filenum=0;
while (<>){
    chomp($_);
    if ($_ eq "stringa"){
        $A++;}
    elsif ($_ eq "stringb"){
        $B++;}
    else {
        $null++;
    }
}
my $popa=$A/1000; #these lines determine what percent of the populatio
+n the strings represent
my $popa=sprintf('%.2f',$popa); #cut the percentages to two decimal pl
+aces
my $popb=$B/1000;
my $popb=sprintf('%.2f',$popb);
my $popnull=$null/1000;
my $popnull=sprintf('%.2f',$popnull);
my $filenum++; #Add one to my filenumber
print RES "$filenum        $A    $popa    $B    $popb    $null    $pop
+null\n"; #print the results out to the "results" file

[download]
What am I doing wrong? Edit: Thanks for the help so far!

In reply to Re^2: Piping many individual files into a single perl script by kelder
in thread Piping many individual files into a single perl script by kelder

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