slack bash webhook

post_to_slack.sh

#!/bin/bash -e

URL= #https://hooks.slack.com/services/<YOUR ID> from webhooks on https://myteam.slack.com/services
CHANNEL="#general" # name of channel
MESSAGE="Hello World" # message
NICK="troll" # bot name
 
# post message
curl -X POST \
--data "payload={\"channel\": \"${CHANNEL}\", \"username\": \"${NICK}\", \"text\": \"${MESSAGE}\", \"icon_emoji\": \":troll:\"}" ${URL}