MySQL 数据库备份多循环

admin

#!/bin/bash
DATE=$(date +%F_%H-%M-%S)
HOST=localhost USER=backup PASS=123.com
BACKUP_DIR=/data/db_backup
DB_LIST=$(mysql -h$HOST -u$USER -p$PASS -s -e "show databases;" 2>/dev/null
|egrep -v "Database|information_schema|mysql|performance_schema|sys")


for DB in $DB_LIST; do BACKUP_DB_DIR=$BACKUP_DIR/${DB}_${DATE}
[ ! -d $BACKUP_DB_DIR ] && mkdir -p $BACKUP_DB_DIR &>/dev/null TABLE_LIST=$(mysql -h$HOST -u$USER
-p$PASS -s -e "use $DB;show tables;"
2>/dev/null)
for TABLE in $TABLE_LIST; do BACKUP_NAME=$BACKUP_DB_DIR/${TABLE}.sql
if ! mysqldump -h$HOST -u$USER -p$PASS $DB $TABLE > $BACKUP_NAME 2>/dev/null; then
echo "$BACKUP_NAME 备份失败!"
fi done
done