This is the command winswitch_back that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
winswitch_back - Window Switch user-is-back message
winswitch_back notifies the Window Switch client that the user is moving back to the
computer where this command is executed. This can be used in combination with
winswitch_away to automatically move the sessions from another computer.
Use winswitch_back online using onworks.net services