Where to start?

Ok, I need to pick up a Worldpay exchange rates file from a url such as:
https://select.worldpay.com/wcc/info...op=rates-today

the http response returns a exchange rates file with content-type "text/plain" content as below:

#Exchange rates for installation 12345
#Tue Dec 05 13:28:23 GMT+00:00 2006
rateDateString=2006-12-05
allRatesCurrent=true
rateDateMillis=1165276800000
GBP_GBP=1.0
GBP_USD=1.4821286404310512
GBP_EUR=1.6173201897996292


I need to load the GBP_USD & GBP_EUR values into a MYSQL database on a nightly basis. Can anyone suggest how I could do this?

I was thinking
1. Write a shell script to to pick up the exchange rates file from the url - is this possible in unix?
2. Parse the exchange rates file in unix using awk, to get the GBP_USD & GBP_EUR exchange rates.
3. pass these values to a stored procedure to load into the database? can this be down in unix? I have executed Oracle stored procedures from unix using the SQLPLUS command, but never done this to a MYSQL database.

I'm still new to unix so I just thinking things through before I start.

Any help greatly appreciated.

Thanks.