SlackのIncoming Webhooksを使って外部から通知するためのシェルスクリプトのサンプル ref: https://qiita.com/d-shimizu/items/07eee4bc876ec508e66c

slack-notify-exec.log

$ ./slack-notify.sh test

slack-notify.sh

#!/bin/bash

URL="https://hooks.slack.com/services/*********/*********/************************"

CHANNEL='#test_channel'
USERNAME='test-bot'
ICON=':sushi:'
MESSAGE='```'$@'```'

PAYLOAD="payload={
    \"channel\": \"${CHANNEL}\",
    \"username\": \"${USERNAME}\",
    \"icon_emoji\": \"${ICON}\",
    \"text\": \"${HEAD}${MESSAGE}\"
}"

curl -s -S -X POST --data-urlencode "${PAYLOAD}" ${URL} > /dev/null