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  1. or download this
    #!/usr/bin/perl

...

    return ( $p->ping($host) ) ? 0 : 1;
}
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    From perldoc Net::Ping

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the remote host is considered reachable.  Specifying the
"icmp" protocol requires that the program be run as root or
that the program be setuid to root.
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    #!/usr/bin/perl

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