ping(8) on FreeBSD
The text 91cd0249f7c7, as FreeBSD 10.4-RELEASE shipped it.
send ICMP ECHO_REQUEST packets to network hosts
Flags it lists
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-A -
-D -
-G -
-I -
-L -
-P -
-Q -
-R -
-S -
-T -
-W -
-a -
-c -
-d -
-f -
-g -
-h -
-i -
-l -
-m -
-n -
-o -
-p -
-q -
-r -
-s -
-t -
-v -
-z