Show elapsed (round-trip) time of packets.

$fping -e www.gnu.org www.gnu.org is alive (301 ms) $fping -e www.gnu.org www.gnu.org is alive (302 ms) $fping -e www.rajagiritech.edu.in www.rajagiritech.edu.in is alive (62.2 ms) $fping www.gnu.org www.gnu.org is alive $ping www.gnu.org PING wildebeest.gnu.org (208.118.235.148) 56(84) bytes of data. 64 bytes from wildebeest.gnu.org (208.118.235.148): icmp_seq=1 ttl=49 time=302 ms 64 bytes from wildebeest.gnu.org (208.118.235.148): icmp_seq=2 ttl=49 time=301 …

pstree command usage example with process id as first argument

ABOUT pstree pstree is a Linux command that shows the running processes as a tree. It is used as a more visual alternative to the ps command. The root of the tree is either init or the process with the given pid. It can also be installed in other Unix systems. TYPICAL COMMANDLINE SESSION [bash] …