++ sudo ip a
++ awk '/ 192.0.2.5\//{print $7}'
+ dev=eth0
+ sleep 1
++ date +%s.%N
+ echo 'doctor set host down at' 1482894965.164096803
doctor set host down at 1482894965.164096803
+ sudo ip link set eth0 down
+ sleep 180
+ sudo ip link set eth0 up
+ sleep 1