send message to notifo service from shell

notifo.sh

#!/bin/bash
# Send messages to [notifo](http://notifo.com/)

# the message is passed from the command line
if [ $# -lt 1 ]; then
  echo "Usage: " $0 "'the message to send'"
  exit 1
else
  message=$1
fi

# make sure curl is installed
if [ ! -x `which curl` ]; then
  echo "Curl must be installed."
  exit 1
fi

# make sure curl >= 7.18 is installed (using --data-urlencode)
CURL_VERSION=`curl --version | head -n 1 | cut -d' ' -f2`
if [ `echo $CURL_VERSION | cut -d'.' -f1` -eq 7 ] && [ `echo $CURL_VERSION | cut -d'.' -f2` -lt 18 ]; then 
  echo "Curl must be at 7.18 or newer"
  exit 1
fi

# users to send the notification to - users must be subscribed
# only seem to be able to send one at a time...
USERS='user1 user2'

# the service registered with notifo and its key
# set up a new service here: http://notifo.com/user/my_services
SERVICE=custom_service_name
APIKEY=custom_service_api_key

# the [notification API](https://api.notifo.com/docs/notifications)
URL=https://api.notifo.com/v1/send_notification

# send the command using curl
for i in $USERS; do
  curl -k -u $SERVICE:$APIKEY --data-urlencode "to=$i" --data-urlencode "msg=$message" $URL
done