Android :: Way To Execute Shell Script File From Droid Application

I am trying to execute a shell script from application using

java.lang.Process API.

The script file is executing properly as i am able to get logs but the line

*$SETPROP net.if.default rmnet0* * * is not getting executed.

has anyone able to execute .sh file from application succesfully.

Code Snippet: *//* *str={"/system/bin/sh","/sdcard/test.sh"};* *Process p = Runtime.getRuntime().exec(str);* * * *//* * * test.sh: LOG=/system/bin/log SETPROP=/system/bin/setprop $LOG -t test"++Setting up default iface"

$SETPROP net.if.default rmnet0 $LOG -t test"++Setting done "