export and import for the mysql

mysqldump -u root -ppassword igen > /home/20141107_db_backup.sql
mysql -u root -ppassword igen < /home/20141107_db_backup.sql

## for remote
mysqldump -h192.168.0.100 -u root -ppassword igen > /home/20141107_db_backup.sql
mysql -h192.168.0.100 -u root -ppassword igen < /home/20141107_db_backup.sql