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Adding entries to a Berkeley DB file

Instrucitions assume that you are working with addresses.db.

cp addresses.db addresses.db.bak

db4.8_dump -p addresses.db > addresses.txt

cp addresses.txt addresses.new.txt
# edit addresses.new.txt by copying lines and editing addresses.

rm addresses.new.db # to avoid merging changes with old changes
db4.8_load addresses.new.db < addresses.new.txt

db4.8_dump -p addresses.new.db # check
rm addreses.txt addresses.new.txt

cat addresses.new.db > addresses.db
rm addresses.new.db

systemctl reload exim4