What is the meaning of the return value of Process.run

Official Hardware Classic Yún
1

Hi
As to the documentation Process.run does not return anything. http://arduino.cc/en/Reference/YunProcessRun
However the declaration states:

unsigned int Process::run()

As I have a problem (code doesn't work anymore but so does the wifi :~ ) and the return value is 1 I'm wondering....
What does 1 mean?
Best regards.
Jantje

2

I found why I didn't get any feedback anymore.
As I stated wifi stopped working.
so when I run the command the return goes to stderr which seems not to be captured by the bridge.

root@chargeStation:~# /tmp/wlan-stats.sh
ifconfig: wlan0: error fetching interface information: Device not found

Best regards
Jantje