in reply to Re^2: Safely capturing the output of an external program
in thread Safely capturing the output of an external program

> Untainting might work though;

In this case I'd additionally surround arguments with 'singlequotes' .

Your untainting demo is explicitly forbidding quotes, in other cases escape them.

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In Section Seekers of Perl Wisdom