glob returns full path so $archiveFileName will include the directory.

my $archiveFileName = $file."_".$toDate.".txt";

and in the copy here you are adding the archive directory on to it

print "copy $file, $archiveFileName\n";
copy ($file, "C:\\data\\app\\AppSpecific1\\Archive\\".$archiveFileName
+) or die "Copy failed: $!";
[download]

It might be easier to use readdir. For example

#!perl
use strict;
use warnings;
use Time::Piece;
use File::Copy;

my $toDate = localtime->strftime('%Y-%m-%d_%H%M%S');
my $dir        = 'C:/data/app/AppSpecific1/In';
my $archiveDir = 'C:/data/app/AppSpecific1/archive';

opendir (my $dh, $dir) 
  or die "Can't opendir $dir: $!";

while (my $file = readdir $dh) {
  next unless $file =~ /^test/; # filter as reqd
  my $srcFile = "$dir/$file";
  next unless -f $srcFile;
  my $destFile = $archiveDir.'/'.$toDate.'_'.$file;
  print "copy $srcFile, $destFile\n";
  copy ( $srcFile, $destFile) 
    or die "Copy failed '$srcFile' to '$destFile' : $!";
}

closedir $dh;
[download]

Using the same variable in the print and the copy wil help debugging

poj

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.