open (DATA, "<.txt") or die "Can't open file $!\n";
@DATA = <DATA>;
close (DATA);

foreach $rec (@DATA) {
	chomp $rec;
        my ($var1, $var2, $var3, $var4) = split(/,/,$rec);
        if ($var1) {
        	$var1 =~ s/^\s+$//g;
		$var2 =~ s/^\s+$//g;
		$var3 =~ s/^\s+$//g;
		$var4 =~ s/^\s+$//g;
		print "$var1 $var2 $var3 $var4\n";
	}
}