Executing shell command in order to write to a file through apk

[AbhiRocks]

Hi all,

I am trying to create an apk which would execute a shell command.
This shell command will write to a file in the shell i.e. sdcard.

The code snippet that i am using is this:

@Override
protected void onStart() {
super.onStart();

Handler handler1 = new Handler();
handler1.postDelayed(new Runnable() {
public void run() {
String cmd = "ls /data >> /sdcard/date.txt";
java.lang.Process p;
try {
p = Runtime.getRuntime().exec(cmd);
BufferedReader input = new BufferedReader(new
InputStreamReader(p.getInputStream()),cmd.length());
Log.i("AbhiRocks", "Output is " + input.readLine());
} catch (IOException e) {
e.printStackTrace();
}

}
}, 5000);


}



And in the manifest.xml file i have added the line:
<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

But i am unable to generate any date.txt file once i run this apk.
P.S. It executes other shell commands which does not involve writing
to a file.
I know that we can write to a file using inbuilt android apk
commands but I need to write/create a file using
shell commands only.

Thanks and Regards,
AbhiRocks

[Anand R]

 

Try using the following command in your code...

 

String cmd = "ls /data > /sdcard/date.txt";

Regards,

Anand.

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Regards,
Anand.

[Dianne Hackborn]

This is about the most inefficient way to write a file that you can come up with.

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