The only thing that comes to mind (but probably isn't really the best solution) is to open the executable as a pipe, then close it after the eval block. 
local $SIG {ALRM} = sub {die "alarm"};
my $fh;

eval {
    alarm (2);
    open $fh, "-|", "$vmdiscover ..." or die "Couldn't open $vmdiscove
+r: $!";
    while (<$fh>) {};
    alarm (0);
};
if ($@ && $@ =~ /^alarm/) {
    print "Command has timed out";
}
elsif ($@) {
    print "$@\n";
}
close $fh;

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In reply to Re: Kill a command launched within script by lostjimmy
in thread Kill a command launched within script by ceweldon

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