[Tutor] renaming files within a directory

[davidwilson at Safe-mail.net]

Hello,
I have a directory containing svg/Flag_of_United_States.svg etc...


Flag_of_the_Seychelles.svg
Flag_of_the_Solomon_Islands.svg
Flag_of_the_United_Arab_Emirates.svg
Flag_of_the_United_Kingdom.svg
Flag_of_the_United_States.svg
Flag_of_the_Vatican_City.svg


Also I have a CSV file like

"us", "United States"
"es", "Spain"

....

How can I rename the svg files so that they become:

flag-us.svg
flag-es.svg

etc..

David