End of Life Ruby 3.2 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

Process::Sys.setgid

Process::Sys.setgid(group) → nil

static VALUE
p_sys_setgid(VALUE obj, VALUE id)
{
    check_gid_switch();
    if (setgid(OBJ2GID(id)) != 0) rb_sys_fail(0);
    return Qnil;
}

Set the group ID of the current process to group. Not available on all platforms.

See also .seteuid .setregid .setegid .setresgid also in 4.1 · 4.0 · 3.4 · 3.3 · 3.1 · 3.0