Java Disk Free Space Get getUnixFreeSpace(String pathname)

Description

get Unix Free Space

License

BSD License

Declaration

public static long getUnixFreeSpace(String pathname) throws IOException 

Method Source Code

//package com.java2s;
// BSD License (http://www.galagosearch.org/license)

import java.io.BufferedReader;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class Main {
    public static long getUnixFreeSpace(String pathname) throws IOException {
        try {//from  w w w .  j  ava 2  s.  c  o  m
            // BUGBUG: will not work on windows
            String[] command = { "df", "-Pk", pathname };
            Process process = Runtime.getRuntime().exec(command);
            InputStream procOutput = process.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(procOutput));

            // skip the first line
            reader.readLine();
            String line = reader.readLine();
            String[] fields = line.split("\\s+");
            reader.close();

            process.getErrorStream().close();
            process.getInputStream().close();
            process.getOutputStream().close();
            process.waitFor();

            long freeSpace = Long.parseLong(fields[3]) * 1024;
            return freeSpace;
        } catch (InterruptedException ex) {
            return 0;
        }
    }
}

Related

1. getFreeSpace(String dir)
2. getFreeSpace(String pathname)
3. getFreeSpaceOnPartition(File f)
4. getTreeSize(File root)
5. getTreeSize(File root)