Backup mysql databases into self contained files

Question

I have a linux system with Mysql contain more than 400 databases,I need to export each databases as a single *.sql file.Is it possible to do this with mysql_dump or Mysqlworkbench.

I have tried mysql_dump with --all-databases option.but this make a file with all database.it is large in size.

Answer 1

One way to achieve this is to write a bash script: _(Source)

#! /bin/bash

TIMESTAMP=$(date +"%F")
BACKUP_DIR="/backup/$TIMESTAMP"
MYSQL_USER="backup"
MYSQL=/usr/bin/mysql
MYSQL_PASSWORD="password"
MYSQLDUMP=/usr/bin/mysqldump

mkdir -p "$BACKUP_DIR/mysql"

databases=`$MYSQL --user=$MYSQL_USER -p$MYSQL_PASSWORD -e "SHOW DATABASES;" | grep -Ev "(Database|information_schema|performance_schema)"`

for db in $databases; do
  $MYSQLDUMP --force --opt --user=$MYSQL_USER -p$MYSQL_PASSWORD --databases $db | gzip > "$BACKUP_DIR/mysql/$db.gz"
done

For more information, have a look at this similar question.