Bitcoin mining when idle

bitcoin_idle

#!/bin/bash

# Monitors for signals from gnome-screensaver and activates or deactivates
# bitcoin miners accordingly.

# Params to the mining programs are all hardcoded. Change 'em manually. Leave the "&"s.

dbus-monitor --session "type='signal',interface='org.gnome.ScreenSaver',member='ActiveChanged'" | \
while read line; do
  case "$line" in
    *boolean\ true)
      nice -n 19 minerd --threads 3 --algo sse2_64 --url http://my.pooled.mining:1234/ --user myusername1 --pass mypass1 &
      cpu_pid=$!
      poclbm -u myusername2 --pass=mypass2 -d 0 --host=http://my.pooled.mining --port=1234 &
      gpu_pid=$!
      ;;
    *boolean\ false)
      kill $cpu_pid
      kill $gpu_pid
      ;;
  esac
done