btc_price_check_cronjob.sh

### your_cronjob.sh ####

btc=$(curl -s http://api.coindesk.com/v1/bpi/currentprice.json | python -c "import json, sys; print(int(json.load(sys.stdin)['bpi']['USD']['rate'].replace(',','').split('.')[0] ))")

ALERT_BTC=3000
if [ $(($btc + 1)) -gt $ALERT_BTC ];
then 
    echo "btc is greater than $ALERT_BTC";
    push "BTC value is greater then $ALERT_BTC"
fi;

zshrc.md

to ~/.bashrc or ~/.zshrc

push(){
    echo "Sending message to pushover. $1"
    curl https://api.pushover.net/1/messages.json -X POST \
        --data "token=xxxxxx&user=xxxxxx&message=$1"
}