fracNanosec="$(echo "$currentTime" | cut -d. -f2)";
epochNanosec="$(( ("$epochSeconds" * 1000000000) + ("$fracNanosec") ))";
echo "$epochNanosec";
fracNanosec="$(echo "$currentTime" | cut -d. -f2)";
epochNanosec="$(( ("$epochSeconds" * 1000000000) + ("$fracNanosec") ))";
echo "$epochNanosec";