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my $cmd = "ping $_ >c:\temp\log.txt";
print "About to run [$cmd]\n";
system($cmd) == 0
    or die "Couldn't run [$cmd]: $!/$?/$^E";

my $cmd = "ping $_ >c:\\temp\\log.txt";
print "About to run [$cmd]\n";
system($cmd) == 0
    or die "Couldn't run [$cmd]: $!/$?/$^E";