We want to change all references of events.ewea.org to www.ewea.org in an SQL dump, so a sed command line for this may be:

sed 's/OLDPHRASE/NEWPHRASE/g' database.sql > database.new.sql

sed 's/events\.ewea\.org/www\.ewea\.org/g' event.sql > event.new.sql

Note: We have to escape the periods and any slashes.

This is particularly useful when migrating a WordPress website off the development server and onto the production server.