IOException: error=13, permission denied

Question

I am trying to run some LINUX like commands from an android application, I want my application to run some custom commands like pkg, dpkg etc. basically I need my application to act as a terminal app, for this, I created a Linux file structure with necessary libraries and binaries inside the application package, i.e. I placed my files under the /data/data/com.example.root.app/files/usr/bin directory structure. Then I am executing them from my code:

Process process; 
try {
        process = Runtime.getRuntime().exec(new String[]{"pkg","search","apache2"}, env, new File(cwd));
    } catch (IOException e) {

        // TODO: Visible error message?
    }

I am using variable env to set the environment variables PATH, LD_LIBRARY_PATH, HOME etc.. which I am passing to the process above. also, i start the process from the directory which contains the commands i.e

String cwd = "/data/data/com.example.root.app/files/usr/bin"

I am able to run rudimentary commands like env, ls -l, pwd but I am not able to run the custom-built commands like pkg.

when I try to execute the command pkg it throws IOException error =13 permission denied

please be informed that I have set the executable permissions to 777 recursively to the whole directory, just to find whether it runs, but it doesn't.

Also when I use already existing terminal application there I am able to run the pkg command

https://stackoverflow.com/a/35933203/6113352 this might help — , Mar 20 '18 at 08:01
I think that your user has no permissions to run `pkg` commands, and that is the cause of error. — Vladyslav Matviienko, Mar 20 '18 at 08:10
@Kurusu thanks for the link but its not related to my problem — Shahbaz Ali, Mar 20 '18 at 08:39
but i have set executable permission to all, i have used chmod 777, so how is it permission problem? — Shahbaz Ali, Mar 20 '18 at 08:42

IOException: error=13, permission denied

0 Answers0