Apps cd doesn't execute in Runtime.exec() in my android application

[mm2426]

Hello Everybody.
I was developing a simple android application in which on a button's click event I wrote
----------------------------------
Runtime r = Runtime.getRuntime();
Process p = r.exec("mount /sdcard");
p = r.exec("cd /mnt/sdcard");
and displayed the standard input stream on the log.
------------------------------------
my problem is I am unable to navigate to the sdcard directory and I am getting an exception saying java.io Exception error running exec command [cd /mnt/sdcard]
Working Directory: null
Environment: null
I was browsing some pages and I came to know that cd doesn't work
then how should I navigate to the sdcard directory?
Thanks in advance

 

[jonbonazza]

What are you ultimately trying to do?

 

[mm2426]

I want to run the gcc compiler command line tool (which runs on a linux os ). I am trying to invoke that tool through my application.

 

[jonbonazza]

I am pretty sure that the gcc compiler is not included in Android.

 

[mm2426]

I know gcc is not included in android that's why I am trying to install gcc in android, as gcc is available for many linux operating systems I want to try to install it in android.

 

[jonbonazza]

Well, if that's the case, before you even begin to try to install it, you need to first port it to Android. Linux is a general term. Software still will often have descrepencies for each distro. Android might be a moodified linux kernel, but it does things very diffferent at times, so gcc will first need to be ported to Android.