mysldump

CLI utility that allows to easily save a database to a file.

Dump to file, no USE instructions, drops existing tables:

mysqldump -u root "$DB_NAME" > bak.sql
mysqldump -u root "$DB_NAME" "$TABLE1" "$TABLE2" > bak.sql

Multiple DBMS, creates DBMS with old names, uses them:

mysqldump -u root --databases "$DB1" "$DB2" > bak.sql

mysqldump -u root --all-databases > bak.sql

All DBMS, includes USE statements.

-d : no data
--no-create-info : data only

Restore database from file

Make sure the DB exists and that you really want to overwrite it!

PASS=
mysql -u root -p"$PASS" < bak.sql

DB=
DB2=
PASS=
mysql -u root -p"$PASS" -e "create database $DB2;"
mysqldump -u root -p"$PASS" $DB | mysql -u root -p"$PASS" $DB2