A bash executable with command line options to post into slack channels

slack_message

#!/bin/bash

# A convenient way to post to Slack channels from the command line... as Lionel Richie
#
# Usage
# ./slack_message
# ./slack_message -t "Hello..."
# ./slack_message -i https://pbs.twimg.com/profile_images/421128111086764032/zv1APHT5.jpeg -u justin -t "I'll be your platinum, I'll be your silver, I'll be your gold"

TOKEN='YOUR_TOKEN_GOES_HERE'
SUBDOMAIN='YOUR_SUBDOMAIN_GOES_HERE'
ENDPOINT="https://$SUBDOMAIN.slack.com/services/hooks/incoming-webhook?token=$TOKEN"
USERNAME='lionel'
CHANNEL='#general'
TEXT="Hello... is it me you're looking for?"
ICON_URL='https://pbs.twimg.com/profile_images/378800000712297666/1b78a729761feed16a2c571a8c390743.jpeg'
ICON_EMOJI=':ghost:'

while getopts "t:c:u:i:" OPTION; do
  case $OPTION in
    t) TEXT=$OPTARG ;;
    c) CHANNEL=$OPTARG ;;
    u) USERNAME=$OPTARG ;;
    i) ICON_URL=$OPTARG ;;
  esac
done

curl \
  -X POST \
  --data "payload={\"channel\": \"$CHANNEL\", \"username\": \"$USERNAME\", \"text\": \"$TEXT\", \"icon_url\": \"$ICON_URL\"}" \
  "$ENDPOINT"