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#!/bin/zsh
## copydb --- Create a copy of a database under a new name
## Commentary:
# Create a copy of the database specified as the first argument as a
# new database named by the second argument. Making usage:
# copydb <from> <to>
# This doesn't try to check for any existing information, it just
# tries to create and copy. It is up to the user to make sure that
# that can actually be done.
# During execution it asks for the root password of MySQL so it can
# create a new database. It will also ask for another user and its
# password to load the database with, this may still be the same user,
# but allows one to specify different users if necessary.
## Code:
echo -n 'Database root PW (for DB creation): '
read -s ROOTPW
echo
echo -n 'Database user for new DB: '
read DBUSER
echo -n 'Database user PW for new DB: '
read -s DBPASSW
echo
mysql -u root -p"$ROOTPW" -B <<EOF
CREATE DATABASE \`$2\`;
GRANT ALL ON \`$2\`.* to '$DBUSER'@'localhost';
EOF
mysqldump -u "$DBUSER" -p"$DBPASSW" "$1" \
| mysql -u "$DBUSER" -p"$DBPASSW" "$2" \
|| mysql -u root -p"$ROOTPW" -B <<EOF
DROP DATABASE \`$2\`;
EOF
unset ROOTPW
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