Re: using split

[lidden]

When you said

       if ($cols[11] = $target1)

You popably ment

       if ($cols[11] == $target1)

The first one is assigning the value of $target1 to $cols[11] the other checks if they are equal.
Also in a line like my($indir) =  "c:/FAMD_EDI"; the parens are redundant.

[FunkyMonk]

Well spotted. If I had any ++ left, you'd have got one:)

The OP should have picked this up himself. I was surprised to see that it generates a warning without strict or warnings:

#!/usr/bin/perl

my $x;

if ( $x = 4 ) {
    print "Hi";
}
#output
Found = in conditional, should be == at /home/pm line 5.
Hi

[naikonta]

I was surprised to see that it generates a warning without strict or warnings

That's one of default warnings, known as mandatory warnings before use warnings; was introduced. These warnings will be enabled by default, but can be controlled with -X switch or warnings. So the following code will issue a warning as you mention:

perl -e 'my $x; if ($x = 1) {}'

But this code won't:

perl -Xe 'my $x; if ($x = 1) {}'

Neither these snippets:

# disable all warnings
no warnings;
my $x;
if ($x = 1) {}

# disable only warnings regarding syntax
no warnings 'syntax';
my $x;
if ($x = 1) {}

References: perllexwarn, perldiag