Command line tool to update thingspeak

thingspeak

#!/bin/bash

# Update thingspeak from command line
# Usage   : thingspeak WRITE_API_KEY DATA
# Example : thingspeak XXXXXXXXXXXX field1=11&field2=12

# consts
URL="https://api.thingspeak.com/update"

# vars
NAME=$(basename $0)

# parse optionals args
while getopts 'h' OPTION
do
    case $OPTION in
    h)
        printf "Usage  : %s [-h] WRITE_API_KEY DATA\n" $NAME
        printf "Example: %s      XXXXXXXXXXXXX field1=11&field2=2\n" $NAME
        printf "\n"
        printf "  -h    print this help message\n"
        exit 0
        ;;      
    esac
done
shift $(($OPTIND - 1))

# parse fixed args
KEY=$1
DATA=$2

# some checks
[ $# -ne 2 ] && { printf "ERROR: $NAME needs 2 args\n" 1>&2; exit 1; }

# do the job
curl "$URL?api_key=$KEY&$DATA" &>/dev/null