I have some code that I'm creating and it all works perfectly except for one part. Near the bottom I try to compare if one string matches another from a while loop. If I put in a static string it executes whats inside of the if statement otherwise it doesn't. A note is I didn't list the hash I use in the code but it does work fully.

# Open the inventory file
open(HANDLE,"<INVENT.TXT");
while(<HANDLE>)
{
    
    # Separate each field for a single row
    @info = split(/,/,"$_");
    $code = $info[0];
    $description = $info[2];
    $manuCode = $info[3];
    $retailPrice = $info[9];
    $invCount = $info[30];
    
    # Strips out useless characters
    $code = substr($code,1,length($code)-2);
    $description = substr($description,1,length($description)-2);
    $manuCode = substr($manuCode,1,length($manuCode)-2);
    $retailPrice = substr($retailPrice,1,length($retailPrice)-3);
    $invCount = substr($invCount,1,length($invCount)-5);
    
    # Strips out whitespaces when needed and multiple zeros
    $code =~ s/\ {1,}//g;
    $description =~ s/\ {2,}//g;
    $retailPrice =~ s/0{2,}//g;
    $invCount =~ s/0{2,}//g;
    
    # Converts inventory count to 0 if there is no inventory
    if($invCount == '')
    {
        $invCount = 0;    
    }
    
    # Compare the manufacturer code and change it if needed    
    while(($key,$value) = each(%catReplace))
    {
        if($manuCode =~ /$key/)
        {
            $manuCode = $value;
            last;
        } 
    }

    # Open the manufacturer file
    open(MAN,"<file.csv");
    while(<MAN>)
    {
        # Separate each field for a single row
        @manInfo = split(/,/,"$_");
        $manufacturer = $manInfo[0];
        $manuID = $manInfo[1];
                    
        # THIS IS WHERE I HAVE PROBLEMS 
        if($manuCode =~ /$manuID/)
        {
            $manuCode = $manufacturer;
            last;    
        }
    }
    close(MAN);
    
    # Open and write the new inventory list
    open(NEWFILE,">>test.txt");
    print NEWFILE $code.',',$description.',',$manuCode.',',$retailPric
+e.',',$invCount."\n";
    close(NEWFILE);
}
close(HANDLE);
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Any help would be appreciated.