# class Etc::Group

`Group` is a placeholder `Struct` for user group database on Unix systems.

### The struct contains the following members¶ ↑

name

  contains the name of the group as a `String`.

passwd

  contains the encrypted password as a `String`. An `'x'` is returned if password access to the group is not available; an empty string is returned if no password is needed to obtain membership of the group. This is system-dependent.

gid

  contains the group’s numeric ID as an integer.

mem

  is an `Array` of Strings containing the short login names of the members of the group.

### Public Class Methods

Etc::Group.each { |group| block } → obj click to toggle source
Etc::Group.each → Enumerator

Iterates for each entry in the `/etc/group` file if a block is given.

If no block is given, returns the `Enumerator`.

The code block is passed a `Group` struct.

Example:

    require 'etc'

    Etc::Group.each {|g|
      puts g.name + ": " + g.mem.join(', ')
    }

    Etc::Group.collect {|g| g.name}
    Etc::Group.select {|g| !g.mem.empty?}

    static VALUE
    etc_each_group(VALUE obj)
    {
        RETURN_ENUMERATOR(obj, 0, 0);
        each_group();
        return obj;
    }