Someone

#!/bin/sh

DIR=`pwd`

for i in `find ${DIR} -name courierimapsubscribed` ; do 
	mv -v \"${i}\" \"`echo ${i} | sed 's/courierimapsubscribed/subscriptions/'`\";
done;

for i in `find ${DIR} -name subscriptions` ; do 
	mv -v \"${i}\" \"`echo ${i} | sed 's/INBOX\.//'`\";
done;

for i in `find ${DIR} -name courierimapuiddb`; do
	mv -v \"${i}\" \"`echo ${i} | sed 's/courierimapuiddb/dovecot-uidlist/'`\";
done;

find ${DIR} -name courierimaphieracl -print0 | xargs -0r rm -vrf
find ${DIR} -name courierimapacl -print0 | xargs -0r rm -vf
find ${DIR} -name courierimapkeywords -print0 | xargs -0r rm -vrf

unset ${DIR}