Standby:
wget -O /dev/null -q http://root:password@localhost/web/powerstate?newstate=0

DeepStandby:
wget -O /dev/null -q http://root:password@localhost/web/powerstate?newstate=1

Reboot:
wget -O /dev/null -q http://root:password@localhost/web/powerstate?newstate=2

Restart Enigma2:
wget -O /dev/null -q http://root:password@localhost/web/powerstate?newstate=3

Wakeup from Standby:
wget -O /dev/null -q http://root:password@localhost/web/remotecontrol?command=116