ping(8) - send ICMP ECHO_REQUEST packets to network hosts
ping [-Rdfnqrv] [-c count] [-i wait] [-l preload] [-p pattern] [-s packetsize] host
-c count
        Stop after sending (and receiving) count ECHO_RESPONSE packets.
-d      Set the SO_DEBUG option on the socket being used.
-f      Flood ping.  Outputs packets as fast as they come back or one hundred times per second, whichever
        is more.  For every ECHO_REQUEST sent a period ``.'' is printed, while for every ECHO_REPLY
        received a backspace is printed.  This provides a rapid display of how many packets are being
        dropped.  Only the super-user may use this option.  This can be very hard on a network and should
        be used with caution.
-i wait
        Wait wait seconds between sending each packet.  The default is to wait for one second between each
        packet.  This option is incompatible with the -f option.
-l preload
        If preload is specified, ping sends that many packets as fast as possible before falling into its
        normal mode of behavior.
-n      Numeric output only.  No attempt will be made to lookup symbolic names for host addresses.
-p pattern
        You may specify up to 16 ``pad'' bytes to fill out the packet you send.  This is useful for
        diagnosing data-dependent problems in a network.  For example, “-p ff” will cause the sent packet
        to be filled with all ones.
-q      Quiet output.  Nothing is displayed except the summary lines at startup time and when finished.
-R      Record route.  Includes the RECORD_ROUTE option in the ECHO_REQUEST packet and displays the route
        buffer on returned packets.  Note that the IP header is only large enough for nine such routes.
        Many hosts ignore or discard this option.
-r      Bypass the normal routing tables and send directly to a host on an attached network.  If the host
        is not on a directly-attached network, an error is returned.  This option can be used to ping a
        local host through an interface that has no route through it (e.g., after the interface was dropped
        by routed(8)).
-s packetsize
        Specifies the number of data bytes to be sent.  The default is 56, which translates into 64 ICMP
        data bytes when combined with the 8 bytes of ICMP header data.
-v      Verbose output.  ICMP packets other than ECHO_RESPONSE that are received are listed.