End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

Etc.setgrent

setgrent

static VALUE
etc_setgrent(VALUE obj)
{
#ifdef HAVE_GETGRENT
    setgrent();
#endif
    return Qnil;
}

Resets the process of reading the /etc/group file, so that the next call to ::getgrent will return the first entry again.

See also .passwd .setpwent .nprocessors .sysconf also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0