Hi,

I tried to follow the instructions in a tutorial about the making of a tail which uses a mel needed to delay the movement of joints, but when I run the mel Maya returns a syntax error. If I change the character ' with " the mel is accepted, though it still not works. This tutorial is a demonstrative part of a chapter about rigging which I've found in a site of books selling.
Is someone able to figure out what's the problem? Any help will be appreciated since I don't get it at all.
Thanks in advance.

Here's the mel:

int $time = 'currentTime -query';
int $delay10 = 'getAttr -time ($time - 10) Hips.ry';
int $delay20 = 'getAttr -time ($time - 20) Hips.ry';
int $delay30 = 'getAttr -time ($time - 30) Hips.ry';
int $delay40 = 'getAttr -time ($time - 40) Hips.ry';
TailRoot.rotateZ = 0 + Hips.rotateY;
Tail2.rotateZ = 0 + $delay10;
Tail3.rotateZ = 0 + $delay20;
Tail4.rotateZ = 0 + $delay30;
TailEnd.rotateZ = 0 + $delay40;