Software shutdown not working

[Blackcode]

Assuming everything is installed correctly:

When i call x728off nothing happens...

maintenance@solarstream:~ $ x728off X728 Shutting down... maintenance@solarstream:~ $

if i bash directly the script x728softsd.sh i get:

maintenance@solarstream:~ $ bash /usr/local/bin/x728softsd.sh /usr/local/bin/x728softsd.sh: line 6: /sys/class/gpio/gpio13/direction: Permission denied /usr/local/bin/x728softsd.sh: line 7: /sys/class/gpio/gpio13/value: Permission denied X728 Shutting down... /usr/local/bin/x728softsd.sh: line 20: echo: write error: Operation not permitted

and if i call the script one more time:

maintenance@solarstream:~ $ bash /usr/local/bin/x728softsd.sh /usr/local/bin/x728softsd.sh: line 5: echo: write error: Device or resource busy X728 Shutting down... maintenance@solarstream:~ $