Good monk ChOas showed me that I needed to import "unlink0".   And I replaced $path in DUNWERK2 with $filehandle and renamed function to NOWITWERX.   Also fixed typo by replacing my$filename with my $filename in 2 places.  

That seems to fix everything, except DUNWERK still doesn't appear to create tempfile.   Since I can now create and unlink with NOWITWORKS syntax, this is good enough for now.   Thanks and ++ to ChOas.   8^)

Updated codelet below.

#!/usr/bin/perl -w

# filetemptest.pl
# 2001-01-19
# 2001-01-18

# File::Temp 0.11    Perl 5.00503
# File::Spec 0.82    Debian 2.2 "Espy"

use strict;
use File::Temp qw(tempfile unlink0);

&WERX();
&WERX2();
&DUNWERK();
&NOWITWERX();

##################################################################
sub NOWITWERX {
    my $template = 'nowitwerxXXXXXXXXXX';
    my $dir      = '/tmp/';
    (my $fh, my $filename) = tempfile($template, DIR => $dir);
    print "\nCreated filehandle $fh with filename $filename.\n\n";
    print "Press (almost) any key to unlink.\n";
    my $continue = (<STDIN>);
    unlink0 ($fh, $filename) or die "  NOWITWERX: Error unlinking file
+ $filename safely.\n";
    }
##################################################################
sub DUNWERK {
    my $template = 'dunwerkXXXXXXXXXX';
    my $dir      = '/tmp/';
    my $fh = tempfile($template, DIR => $dir);
    print "\nCreated filehandle $fh.\n";
    print "Press (almost) any key to continue\n";
    my $continue = (<STDIN>);
    }
##################################################################
sub WERX2 {
    my $template = 'werx2XXXXXXXXXX';
    my $dir      = '/tmp/';
    (my $fh, my $filename) = tempfile($template, DIR => $dir);
    print "\nCreated filehandle $fh with filename $filename.\n\n";
    print "Press (almost) any key to continue\n";
    my $continue = (<STDIN>);
    }
##################################################################
sub WERX {
    (my $fh, my $filename) = tempfile();
    print "\nCreated filehandle $fh with filename $filename.\n";
    print "Press (almost) any key to continue\n";
    my $continue = (<STDIN>);
    }
##################################################################
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