Hm... ezt én sem tudtam:
ping 1551333931
PING 1551333931 (92.119.122.43) 56(84) bytes of data.
64 bytes from 92.119.122.43: icmp_seq=1 ttl=60 time=10.1 ms
64 bytes from 92.119.122.43: icmp_seq=2 ttl=60 time=11.5 ms
64 bytes from 92.119.122.43: icmp_seq=3 ttl=60 time=8.93 ms
64 bytes from 92.119.122.43: icmp_seq=4 ttl=60 time=11.8 ms
^C
--- 1551333931 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 8.931/10.602/11.823/1.162 ms