ethminer start/stop shell script for crontab

ethermining.sh

#!/usr/bin/env bash
# Inspired by https://forum.ethereum.org/discussion/13723/cron-the-miner

ethminer=/opt/ethminer
wallet=08adb68e47e6552f23a5d34feb0d7b47852522b6
log="$HOME/log/ethminer_$(date "+%Y%m%d_%H%M%S").log"

case $1 in
start)
    $ethminer --farm-recheck 200 --cuda --stratum us1.ethermine.org:4444 -SF us1.ethermine.org:14444 --userpass $wallet > $log 2>&1 &
    ;;

stop)
    ethminer_pid=$(ps axf | grep ethminer | grep -v grep | awk '{print $1}')
    kill -9 $ethminer_pid
    ;;

*)
    echo "wrong parameter"
    exit 2
    ;;
esac