My device has been rooted and now i want to run an .sh file from my android application. I tried with following code but it did't provide the intended output:
Process process = Runtime.getRuntime().exec("sh /data/local/tmp/xyz.sh");
If i run .sh file from adb it is working fine for me.
Try following code.
try{
Process root = Runtime.getRuntime().exec("su");
DataOutputStream os = new DataOutputStream(root.getOutputStream());
os.writeBytes("sh /system/bin/xyz.sh \n");
os.flush();
}
catch (IOException e) {
e.printStackTrace();
}
catch (SecurityException se){
se.printStackTrace();
}
This snippet worked for me,I hope this may help you.
Process process = Runtime.getRuntime().exec("sh /data/local/tmp/xyz.sh");
Scanner stdout = new Scanner(process.getInputStream());
while (stdout.hasNextLine()) {
Log.i("stdout", stdout.nextLine());
}
stdout.close();
Scanner stderr = new Scanner(process.getErrorStream());
while (stderr.hasNextLine()) {
Log.e("stderr", stderr.nextLine());
}
stderr.close();
Related
I can’t figure out how to flush the Logcat on my Application. Code below
Saving Logcat into File: (this works)
File File_logcat = new File(Environment.getExternalStorageDirectory(),
"log.txt");
try {
Runtime.getRuntime().exec(
"logcat -f " + File_logcat.getAbsolutePath());
} catch (IOException e) {
e.printStackTrace();
}
After that save I flush the Logcat with: (this doesn't work)
try {
Runtime.getRuntime().exec(
"logcat --clear"); //Also tested -c or -b all –c
} catch (IOException e) {
e.printStackTrace();
}
I’ve searched for a solution on developer.android.com which says “logcat -b all –c” (or even –c) would flush it but none of them succeed.
Did I miss something?
Thanks #CommonsWare.
I just discovered that both code snippets work on a rooted mobile device. So it seems like you can't flush it without permission.
I'm developing phonegap app and right now I'm trying to write a plugin to convert .amr files to .mp3 files. I'm using JAVE to do this conversion and while it's working on desktop it fails on android with this exception:
java.io.IOException: Error running exec().
Command: [/data/data/<my_package>/cache/jave-1/ffmpeg, -i, /sdcard/<my_filename>.amr, -vn, -acodec, libmp3lame, -f, mp3, -y, /sdcard/<my_filename>.mp3]
Working Directory: null Enviroment: null
I'm trying to do conversion like this:
private void convert(String input_file, CallbackContext callbackContext){
File input = new File(input_file);
File output = new File(input_file.replace(".amr", ".mp3"));
Encoder encoder = new Encoder();
EncodingAttributes encodingAttributes = new EncodingAttributes();
AudioAttributes audioAttributes = new AudioAttributes();
audioAttributes.setCodec("libmp3lame");
encodingAttributes.setAudioAttributes(audioAttributes);
encodingAttributes.setFormat("mp3");
try{
encoder.encode(input, output, encodingAttributes);
input.delete();
callbackContext.success("finished");
}
catch(Exception e){
callbackContext.error(e.getMessage());
}
}
I found this answer and I understand why error happens but the answer doesn't provide any solution. Is there a way to get this working in Phonegap project? Do I need to package ffmpeg library together with plugin and copy it to correct folder when app invokes the plugin?
/data/data/<my_package>/cache/jave-1
Stucked with same problem. For now i found that there is problem with file ffmpeg permissions. JAVE trying to set them, but for some reason it not working.
So i set this permission by myself like this:
Process process = null;
DataOutputStream dataOutputStream = null;
try {
process = Runtime.getRuntime().exec("su");
dataOutputStream = new DataOutputStream(process.getOutputStream());
dataOutputStream.writeBytes("chmod 0755 __AppCachePath__/jave-1/ffmpeg\n");
dataOutputStream.writeBytes("exit\n");
dataOutputStream.flush();
process.waitFor();
} catch (Exception e) {
} finally {
try {
if (dataOutputStream != null) {
dataOutputStream.close();
}
process.destroy();
} catch (Exception e) {
}
}
After this File permission problem goes away.
Please help me to find out solution for this, I Know there are so many questions and duplicates about this same but here i describe whole things which i tried.
I have one android device where its installed 4.0 version of android.
I want to shutdown this device using my one demo application.
1) Demo application is signed by platform keys which are used in built in file system.
2) Device is already rooted as its development board and i have all permissions on this.
Application contains Following things
1) Application is system application
2) Application signed by platform keys which are used in built in file system.
For make automation easier, I did import the key/cert pair into my java keystore file, with the this keytool-importkeypair and use eclipse for signing.
Used command is mentioned below.
Commad : keytool-importkeypair -k ~/Desktop/myown.keystore -p android -pk8 platform.pk8 -cert platform.x509.pem -alias platform
I used following code for reboot but i never make success in this .I read So many questions and answers on stackoverflow but they all said you require
1) root access of device
2) signed apk with any one keys which are available on `build/target/product/security/`
3) Given Proper permission in AndroidManifest.xml file.
Am i right in alomg points?
Application code :
First Try
public static void shutdown2() {
Runtime runtime = Runtime.getRuntime();
Process proc = null;
OutputStreamWriter osw = null;
String command = "/system/bin/reboot -p";
try { // Run Script
proc = runtime.exec("/system/xbin/su");
osw = new OutputStreamWriter(proc.getOutputStream());
osw.write(command);
osw.flush();
osw.close();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (osw != null) {
try {
osw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
try {
if (proc != null)
proc.waitFor();
} catch (InterruptedException e) {
e.printStackTrace();
}
if (proc.exitValue() != 0) {
}
}
Second Try :
private void shutdown3() {
try {
String[] cmd = { "/system/bin/sh","su","reboot -p"};
Process proc = Runtime.getRuntime().exec(cmd);
proc.waitFor();
} catch (Exception ex) {
Log.i("TAG", "Could not reboot 3 ", ex);
}
}
3rd Try :
private void shutdown() {
try {
Process proc = Runtime.getRuntime().exec(
new String[] { "/system/bin/su", "-c",
"/system/bin/reboot -p" });
proc.waitFor();
} catch (Exception ex) {
Log.i("TAG", "Could not reboot 1 ", ex);
}
}
In 3rd method I also tried with "/system/bin/su"
The below code worked for me
Process process = Runtime.getRuntime()
.exec(new String[]{ "su", "-c", "busybox poweroff -f"});
process.waitFor();
A much better solution is to run:
su -c am start -a android.intent.action.ACTION_REQUEST_SHUTDOWN
You can use a Process for this.
Firstly I'm new to Android.
How to execute the following shell command
echo "1" > /sys/devices/enable
in an android app.
I referred many link's but I didn't get the solution.
Is there any permission that I should mention in the manifest file to execute the shell commands in the app???.
Thanks in advance.
try{
Process process;
process = Runtime.getRuntime().exec("echo "1" > /sys/devices/enable");
BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
}
catch (InterruptedException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
Why not write in Java?
try{
FileWriter fw = new FileWriter(new File("/sys/devices/enable"));
fw.write('1');
fw.close();
}catch(IOExceprion e){}
If you really want to invoke a shell, try this:
Runtime rt = Runtime.getRuntime();
Process p = rt.exec(new String[]{"/system/bin/sh", "-c", "echo \"1\" > /sys/devices/enable");
Make sure your device is rooted first before trying any of the above mentioned approaches.
I would like to know if there is a way to reboot the device through code. Ive tried:
Intent i = new Intent(Intent.ACTION_REBOOT);
i.putExtra("nowait", 1);
i.putExtra("interval", 1);
i.putExtra("window", 0);
sendBroadcast(i);
And added permissions for REBOOT but it still doesnt work.
Thanks
This seemed to work for me:
try {
Process proc = Runtime.getRuntime().exec(new String[] { "su", "-c", "reboot" });
proc.waitFor();
} catch (Exception ex) {
Log.i(TAG, "Could not reboot", ex);
}
Still for rooted devices, but in case you want safer (process.waitFor() is conditioned, in separate try-catch, we have proper exception handling, "now" added in command after reboot, which is necessary for some devices, etc.) and maybe cleaner code, take a look at this:
Process rebootProcess = null;
try
{
rebootProcess = Runtime.getRuntime().exec("su -c reboot now");
}
catch (IOException e)
{
// Handle I/O exception.
}
// We waitFor only if we've got the process.
if (rebootProcess != null)
{
try
{
rebootProcess.waitFor();
}
catch (InterruptedException e)
{
// Now handle this exception.
}
}
You could possibly use the PowerManager to make it reboot (this does not guarantee that it'll reboot - OS may cancel it):
links
link #2
I am using Xamarin. For me the solution is:
Java.Lang.Runtime.GetRuntime().Exec(new String[] { "/system/xbin/su", "-c", "reboot now" });
Here is a solution. Remember, the device must be rooted.
try{
Process p = Runtime.getRuntime().exec("su");
OutputStream os = p.getOutputStream();
os.write("reboot\n\r".getBytes());
os.flush();
}catch(IOException )
If the phone is rooted, it's actually very simple:
try {
Runtime.getRuntime().exec("su");
Runtime.getRuntime().exec("reboot");
} catch (IOException e) {
}
The first command will ask for superuser permission. The second, will reboot the phone.
There is no need for extra permissions in the manifest file since the actual rebooting is handled by the executed comamand, not the app.