Noobie at java just starting, would appreciate any help. So my code is this and for some reason I cant get the output to work..I ve been sitting at this for hours..
package askisi1;
import java.net.*;
import java.util.*;
import java.lang.*;
import java.io.*;
public class Main{
public static void main(String[] args){
try{
String command = "ifconfig eth1 | grep -oP '[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}'";
Process child = Runtime.getRuntime().exec(command);
System.out.println("So far so good");
BufferedReader r = new BufferedReader(new InputStreamReader(child.getInputStream()));
String s;
while ((s = r.readLine()) != null) {
System.out.println(s);
}
r.close();
System.out.println("Continue..");
}
catch (IOException e) {
e.printStackTrace();
}
}
}
Runtime.exec()
needs some additional information to execute an Unix Command.
So, assuming my ethernet card is lo0
:
String[] command = {
"/bin/sh",
"-c",
"ifconfig lo0 | grep -oP '[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}'"
};
Process child = Runtime.getRuntime().exec(command);
// following here your remaining unchanged code
This prints:
So far so good
127.0.0.1
Continue..