O comando nl
adiciona números de linha à sua entrada. você pode canalizar a saída de ping
para nl
.
% ping -c3 google.com | nl
1 PING google.com (74.125.224.105) 56(84) bytes of data.
2 64 bytes from nuq04s08-in-f9.1e100.net (74.125.224.105): icmp_req=1 ttl=55 time=31.2 ms
3 64 bytes from nuq04s08-in-f9.1e100.net (74.125.224.105): icmp_req=2 ttl=55 time=14.8 ms
4 64 bytes from nuq04s08-in-f9.1e100.net (74.125.224.105): icmp_req=3 ttl=55 time=16.3 ms
5 --- google.com ping statistics ---
6 3 packets transmitted, 3 received, 0% packet loss, time 2002ms
7 rtt min/avg/max/mdev = 14.851/20.833/31.286/7.417 ms