Re^3: Using Variable outside of loop with Net::SSH

Doing $result=$_ inside the loop should work, but after the loop, $result will have the value of $_ from the last loop that executed. That might not be what you expected. I would test it by trying something like this:

my $result;
while(<$chan>){
  $result = $_;
  print "Inside loop: $result\n";
}
print "Outside loop: $result\n";
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That should show you what's being assigned in each loop, and the last inside loop should show the same value as what ends up outside it.

One other thing: if you have other code inside the loop which you've removed for the sake of this sample, make sure it's not changing the value of $_ before you assign it to $result.

Aaron B.
Available for small or large Perl jobs and *nix system administration; see my home node.

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Re^4: Using Variable outside of loop with Net::SSH2
by Athanasius (Archbishop) on May 08, 2015 at 14:32 UTC

if you have other code inside the loop which you've removed for the sake of this sample, make sure it's not changing the value of $_ before you assign it to $result

Excellent point. So why not play it safe and dispense with $_ altogether?

my $result;

while ($result = <$chan>)
{
    ...
}

# use $result
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Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

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Re^4: Using Variable outside of loop with Net::SSH
by Nich240 (Initiate) on May 08, 2015 at 14:37 UTC

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