In windows argument -w and number in milliseconds set how long wait echo reply from pinging host.

I'm running now macOS Sierra and -t argument from ping help set count of echo requests. So ping google.com -c 5 and ping google.com -t 5 give the same result - five echo requests with default timeout.

Is there a flag that does what I need?


Looking at the man page for ping (man ping); under the -i wait option, we see that the default time between sending pings is 1 second:

-i wait

wait seconds between sending each packet. The default is to wait for one second between each packet.

So, using the default of sending 1 packet every 1 second, the options -t and -c will produce the same output.

When we add in a fractional wait time of say, a half second, we should now get 12 packets sent within the 6 seconds:

$ sudo ping -i .5  -t 6 apple.stackexchange.com

PING apple.stackexchange.com ( 56 data bytes
64 bytes from icmp_seq=0 ttl=58 time=12.509 ms
64 bytes from icmp_seq=1 ttl=58 time=11.990 ms
64 bytes from icmp_seq=2 ttl=58 time=17.027 ms
64 bytes from icmp_seq=3 ttl=58 time=13.173 ms
64 bytes from icmp_seq=4 ttl=58 time=15.752 ms
64 bytes from icmp_seq=5 ttl=58 time=10.337 ms
64 bytes from icmp_seq=6 ttl=58 time=15.484 ms
64 bytes from icmp_seq=7 ttl=58 time=9.653 ms
64 bytes from icmp_seq=8 ttl=58 time=9.734 ms
64 bytes from icmp_seq=9 ttl=58 time=9.486 ms
64 bytes from icmp_seq=10 ttl=58 time=11.321 ms
64 bytes from icmp_seq=11 ttl=58 time=9.549 ms

Twelve responses as expected. Note, that you must run this as root; per the man page for the -i wait option:

The wait time may be fractional, but only the super-user may specify values less than 1 second.

Now, the -W option (capital "W", not lowercase) will be the equivalent to the Windows -w which specifies a wait time between receipt of the packets:

-W waittime Time in milliseconds to wait for a reply for each packet sent. If a reply arrives later, the packet is not printed as replied, but considered as replied when calculating statistics.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .