Apps How to execute shell commands in android app?

[kbn456]

Hi All,

I'm new to android app's.
I need to execute following command in my app.
command: echo "1" > /sys/manager0/enable

I tried this with following code in my app.

Process p = Runtime.getRuntime().exec("su");
DataOutputStream stdin = new DataOutputStream(p.getOutputStream());
String cmd = "echo \"1\" /sys/manager0/enable";
stdin.writeBytes(cmd+"\n");

There is no error and app executed perfectly but there is no change in the /sys/manager0/enable

Please give suggest some solution to this.

Thanks in advance.

 

[GeorgeN]

It looks like you are missing a ">" character in your command. The command yo are executing will just print "1 /sys/manager0/enable" to stdout.

 

[jonbonazza]

Also, in order to successfully execute "su", you need to ensure that the device has root access.