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Re: Variable expansion

by stephen (Priest)
on Apr 17, 2002 at 13:38 UTC ( #159807=note: print w/ replies, xml ) Need Help??


in reply to Variable expansion

Hard to say without seeing a little more code... if the problem were tainting, you would get an error message something like:

Insecure dependency in `` while running with -T switch at ping_thingy. +pl line 10, <STDIN> line 1.

Backticks interpolate their contents like a double-quoted string... but if you used single-quotes for $cmd, i.e.:

my $cmd = '/usr/sbin/ping $this->{config}->{server}' my $output = `$cmd`;
then you're going to get '/usr/sbin/ping $this->{config}->{server}' in the backticks. Switch those to double-quotes and you'll be OK.

Or better yet, perhaps you can use Net::Ping...

stephen


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