change: 
while (<PINGALLIP>) {
   if (/is alive/) {
                chomp;
                print ALIVEIP $_;
        }
}

[download]
to: 
while (<PINGALLIP>) {
   if ($_ =~ /is alive/) {
                chomp;
                print ALIVEIP $_;
        }
}

[download]
That will apply the m// operator to magic variable $_, which is the current line of your while loop.

In reply to Re: Printing matched lines by dug
in thread Printing matched lines by zuinc

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