#!/bin/sh
##########
#
# Normalize Ratok BT WattCH2 CSV Data
#
##########
# Format
# 1st line: Index
# Realtime Data
# 年/月/日,時:分:秒,消費電力(W),電圧(V),電流(mA)
# 2024/05/04,20:12:45,23.100,101.393,241.142
# yy/mm/dd,hh:mm:ss,Power Consumprion(W), Voltage(V), electric current(A)

#-- Usage
Usage() {
  echo "$0 infile"
}

#-- Main
[ $# -ne 1 ] && Usage && exit 0

echo "Date,Time,Watt"
cat ${1} | \
awk 'FS=","{print $1,",",$2,",",$3}' | \
sed '1d'