Hi monks,
First I will explain what I understood about perl taint.

It will prevent you from using or relying on data that was provided from outside the script.

Is this right?

If right, then please look the code below 

use strict;
use warnings;
system("ls");

[download]
When I run this script with -T switch, it tells
Insecure $ENV{PATH} while running with -T switch at a.pl line 32. error
But my question is, inside the script only I gave the input. So why it is telling error.

If my understanding is wrong on perl taint, please correct me.

In reply to Doubt in perl taint by lakshmananindia

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