[Linux-Biella] Java runtime

[Federico 'Phate' Pistono]

Ciao,
come cavolo faccio a far eseguire a java un comando unix con i vari pipe,
grep e wildcards?
Ho semplificato l'esempio per farmi capire. Command viene eseguito
correttamente, se invece provo con command0 non riconosce il pipe e mi dice:

/bin/ls: |: No such file or directory
/bin/ls: grep: No such file or directory
/bin/ls: m: No such file or directory

Codice:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Ex {
    public static void main(String args[]){
        String line = "";
        BufferedReader b;
        String command = "ls -la | grep m";
        try {
            Process myCommand = Runtime.getRuntime().exec(command);
            //Process myCommand = new ProcessBuilder(myArgs).start();
            // stdout
            b = new BufferedReader(new InputStreamReader(
myCommand.getInputStream()));
            while ((line = b.readLine()) != null)
                System.out.println(line);
            // stderr
            b = new BufferedReader(new InputStreamReader(
myCommand.getErrorStream()));
            while ((line = b.readLine()) != null)
                System.out.println(line);
        } catch (IOException e) {
            System.out.println(e.getMessage());
            e.printStackTrace();
        }
    }
}

Grazie

-- 
Federico Pistono   Department of Computer Science - Verona, Italy
Linux Registered User #340392

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