A small bash script for sending myself notifications from unRAID

telegram_notification.sh

#!/bin/bash
TOKEN=XXX
CHAT_ID=XXX
URL="https://api.telegram.org/bot$TOKEN/sendMessage"
LIMIT=95
CACHE_LIMIT=60

#Checks how much space% is consumed on the array
ARRAY_USED_PERCENT=`df -h /mnt/user | awk '{print $5}' | sed -ne 2p | cut -d'%' -f1`
#Checks how much available space there is in GB
ARRAY_AVAIL_SPACE=`df -h /mnt/user | awk '{print $4}' | sed -ne 2p`
#Checks how much space% is consumed on the cache drive
CACHE_USED=`df -h /mnt/cache | awk '{print $5}' | sed -ne 2p | cut -d'%' -f1`
#Checks how much available space there is in GB
CACHE_AVAIL_SPACE=`df -h /mnt/cache | awk '{print $4}' | sed -ne 2p`

if [ $ARRAY_USED_PERCENT -ge $LIMIT ] 
then
	MESSAGE="WARNING: Free Array Space is at `expr 100 - $ARRAY_USED_PERCENT`%. There is $ARRAY_AVAIL_SPACE available."
	curl -s -X POST $URL -d chat_id=$CHAT_ID -d text="$MESSAGE"
fi

if [ $CACHE_USED -ge $CACHE_LIMIT ] 
then
	MESSAGE="WARNING: Free Cache space has fallen below `expr 100 - $CACHE_USED`%. There is $CACHE_AVAIL_SPACE available."
	curl -s -X POST $URL -d chat_id=$CHAT_ID -d text="$MESSAGE"
fi