Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →
class method
Process::Sys.setrgid
Process::Sys.setrgid(group) → nil
process.c
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static VALUE
p_sys_setrgid(VALUE obj, VALUE id)
{
check_gid_switch();
if (setrgid(OBJ2GID(id)) != 0) rb_sys_fail(0);
return Qnil;
}
Set the real group ID of the calling process to group. Not available on all platforms.