Runtime.exec()

Hi all,

Could someone please help me with this: I am trying to run a dos/unix command within my java application by using:

String command = "ping hostname";
try {
(Runtime.getRuntime()).exec(command);
}
catch (Exception e) {}

It works fine except for the fact that I don't know how to get the output. For instance, when I issue the command "Ping hostname", it would execute successufully, but I'd like to have the output redirected to a text file: ie:
(Runtime.getRuntime()).exec("ping > result.txt");
I thought that this method should work, but it seems that no output text file is being generated.

Any help on this would be greatly appreciated.

TN

[unicman]

Well Runtime.exec() method returns 'Process' instance. And 'Process' class has getInputStream, getOutputStream etc. methods. Have u tried catching output using 'getInputStream' and then by reading from the stream?

- UnicMan
http://members.tripod.com/unicman

Hi unicman,
Thanks for your input, it really works. But now I just wonder if there is a way to capture this output to a string instead of a file (just to avoid applet security manager). Any thought on this will be appreciated.

Thanks in advance
TN

[unicman]

Sorry for the delay in response.

Yes it is possible to capture the output in a string. U get 'InputStream' and attach it to 'DataInputStream' and then u can read line by line if u want or go on appending the string and after all the data has come, start processing it.

I didn't understand why u stored the data in a file.

- UnicMan
http://members.tripod.com/unicman