[BK-2020-03.git] / unitproc / bktemp-timeEpochNS

#!/bin/bash
# Desc: Get timestamp in nanoseconds

timeEpochNS() {
    # Desc: Get epoch nanoseconds
    # Usage: timeEpochNS
    # Version 0.1.2
    # Input: (none)
    # Output: Nanoseconds since 1970-01-01
    # Depends: date 8
    local currentTime epochSeconds fracNanosec epochNanosec
    currentTime="$(date +%s.%N)";
    epochSeconds="$(echo "$currentTime" | cut -d. -f1)";
    fracNanosec="$(echo "$currentTime" | cut -d. -f2)";
    epochNanosec="$(( ("$epochSeconds" * 1000000000) + ("$fracNanosec") ))";
    echo "$epochNanosec";
} # Nanoseconds since 1970-01-01

#==BEGIN sample code==
echo "It's been $(timeEpochNS) nanoseconds since 1970-01-01.";
#==END sample code==

# Author: Steven Baltakatei Sandoval
# License: GPLv3+
Commit	Line	Data
e9c166c0 SBS	1	#!/bin/bash
	2	# Desc: Get timestamp in nanoseconds
	3
4caeddd7	4	timeEpochNS() {
e9c166c0	5	# Desc: Get epoch nanoseconds
4caeddd7	6	# Usage: timeEpochNS
d0dc71da	7	# Version 0.1.2
e9c166c0 SBS	8	# Input: (none)
	9	# Output: Nanoseconds since 1970-01-01
	10	# Depends: date 8
d0dc71da	11	local currentTime epochSeconds fracNanosec epochNanosec
e9c166c0 SBS	12	currentTime="$(date +%s.%N)";
	13	epochSeconds="$(echo "$currentTime" \| cut -d. -f1)";
	14	fracNanosec="$(echo "$currentTime" \| cut -d. -f2)";
	15	epochNanosec="$(( ("$epochSeconds" * 1000000000) + ("$fracNanosec") ))";
	16	echo "$epochNanosec";
aec895f5	17	} # Nanoseconds since 1970-01-01
e9c166c0 SBS	18
e9c166c0 SBS	19	#==BEGIN sample code==
4caeddd7	20	echo "It's been $(timeEpochNS) nanoseconds since 1970-01-01.";
e9c166c0	21	#==END sample code==
5b497be8 SBS	22
	23	# Author: Steven Baltakatei Sandoval
	24	# License: GPLv3+