a way to limit ferret's CPU usage

On my second day with Ferret, I noticed something...

On Mac OSX (Mountain Lion 10.9.2), Ferret (v6.82) eats up all my CPUs (>100%!) and fans are making noise at all times.

Actually Ferret is not the first program that does this to this computer, so I decided to search for some tool which limits the CPU usage of a particular process/program.

And I found this:

CPU limit

This works on both Mac/Linux. I followed the instruction and downloaded and installed the command "cpulimit".

Now I can use Ferret with CPU limit of whatever % I want. For example, for 50 % upper limit:

cpulimit --limit 50 ferret

It works! You can confirm the result with "top".

But it would be troublesome to type this line of command at every start-up.

The immediate solution for me is to create the shell script named "ferret" and put it in my $HOME/bin folder so that I now can use the command "ferret" which does this:

#!/bin/sh

cpulimit --limit 50 /usr/local/ferret/bin/ferret