mass changing wordpress permalinks

mass changing wordpress permalinks

so I have this odd question that may not be possible to answer... Not
really sure, but whatever; I'll ask it anyways... I have a permalink
structure as follows:
www.mydomain.com/courses/economics/gdp/gdp-lesson
www.mydomain.com/courses/economics/gdp/gdp-test
www.mydomain.com/courses/economics/demand/demand-lesson
www.mydomain.com/courses/economics/demand/demand-test
www.mydomain.com/courses/economics/supply/supply-lesson
www.mydomain.com/courses/economics/supply/supply-test
And I have hundreds of pages at the end of the permalink like that. This
is on a wordpress installation, so the page titles respectively are:
GDP - Lesson
GDP - Test
Demand - Lesson
Demand - Test
Supply - Lesson
Supply - Test
I'd like to see if it's possible to run some code or a script or something
(idk) that will just modify the permalinks for each of these pages to make
them look like:
www.mydomain.com/courses/economics/gdp/lesson
www.mydomain.com/courses/economics/gdp/test
www.mydomain.com/courses/economics/demand/lesson
www.mydomain.com/courses/economics/demand/test
www.mydomain.com/courses/economics/supply/lesson
www.mydomain.com/courses/economics/supply/test
while keeping the page titles and everything else the same. I'm not sure
if this is possible without screwing up a lot of stuff. If anyone could
figure this out, I'd be forever grateful!