Java IO & NIO - Files.setPosixFilePermissions() Examples

package com.logicbig.example.files;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.attribute.PosixFilePermission;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

public class SetPosixFilePermissionsExample {

    public static void main(String... args) throws IOException {
        Path path = Files.createTempFile("test-file", ".txt");
        System.out.println(path);

        System.out.println("- posix permission before --");
        printPosixPermissions(path);

        //setting posix permissions
        Set<PosixFilePermission> permissions = new HashSet<>();
        permissions.add(PosixFilePermission.OTHERS_WRITE);
        Files.setPosixFilePermissions(path, permissions);

        System.out.println("- posix permission after --");
        printPosixPermissions(path);
    }

    private static void printPosixPermissions(Path path) throws IOException {
        Map<String, Object> attributes = Files.readAttributes(path, "posix:*");
        attributes.entrySet()
                  .forEach(e -> System.out.printf("%s = %s%n", e.getKey(), e.getValue()));
    }
}