unitproc/bktemp-timeNanosec

   1 #!/bin/bash
   2 # Desc: Get timestamp in nanoseconds
   3
   4 timeNanosec() {
   5     # Desc: Get epoch nanoseconds
   6     # Version 0.1.2
   7     # Input: (none)
   8     # Output: Nanoseconds since 1970-01-01
   9     # Depends: date 8
  10     local currentTime epochSeconds fracNanosec epochNanosec
  11     currentTime="$(date +%s.%N)";
  12     epochSeconds="$(echo "$currentTime" | cut -d. -f1)";
  13     fracNanosec="$(echo "$currentTime" | cut -d. -f2)";
  14     epochNanosec="$(( ("$epochSeconds" * 1000000000) + ("$fracNanosec") ))";
  15     echo "$epochNanosec";
  16 } # Nanoseconds since 1970-01-01
  17
  18 #==BEGIN sample code==
  19 echo "It's been $(timeNanosec) nanoseconds since 1970-01-01.";
  20 #==END sample code==
  21
  22 # Author: Steven Baltakatei Sandoval
  23 # License: GPLv3+