$line_num++;
chomp $line;
$line =~ s/\r//g;
- #print $diff_tool_tmp_fh "$line\n";
print "[TESH/debug] $line_num: $line\n" if $opts{'debug'};
my $next;
# deal with line continuations
@bg_cmds=();
-close $diff_tool_tmp_fh;
-system("$diff_tool $diff_tool_tmp_filename $tesh_file");
-unlink $diff_tool_tmp_filename;
+if ($diff_tool) {
+ close $diff_tool_tmp_fh;
+ system("$diff_tool $diff_tool_tmp_filename $tesh_file");
+ unlink $diff_tool_tmp_filename;
+}
if($error !=0){
exit $exitcode;