auto reload/reset current sketch from code ?

Hi to all !

I am newbie Yun developer... I wondering if is possible to reload/reset the current sketch running from Arduino Yun Linux side... in other words, is there exists a way to automatically "reboot" (from sketch code, command line, bash script, etc) the Arduino Yun run status for re-running the current sketch stored?

My trouble comes by execute a python script through a Process object in the sketch... that never return finish value... maybe some deadlock occurs.
Additional info: the python script has the code posted by Erni here: Yún and SSL - #12 by Erni - Arduino Yún - Arduino Forum

Thanks in advance!
and sorry for my English :relaxed: