отправить ICMP ECHO_REQUEST на сетевые узлы (send ICMP ECHO_REQUEST to network hosts)
Синопсис (Synopsis)
ping [-aAbBdDfhLnOqrRUvV46] [-c count] [-F flowlabel]
[-i interval] [-I interface] [-l preload] [-m mark]
[-M pmtudisc_option] [-N nodeinfo_option] [-w deadline]
[-W timeout] [-p pattern] [-Q tos] [-s packetsize]
[-S sndbuf] [-t ttl] [-T timestamp option] [hop...]
{destination}
