ISO 8601 UTC compliant Unix datetime stamp format

iso_8601.sh

#!/bin/bash
# This script generates test logs with a UTC ISO 8601
# compliant timestamp
# http://www.iso.org/iso/home/standards/iso8601.htm, 
# https://en.wikipedia.org/wiki/ISO_8601

while true
do
  date -u +%Y-%m-%dT%H:%M:%S%z
  sleep 1
done