在对mysql进行完整备份时使用--all-database参数
# mysqldump -u root -h localhost -p --all-database > /root/all.sql
数据导入的时候,可以先登陆mysql数据库中,使用source /root/all.sql进行导入。
如果想要在mysqldump备份数据库时过滤掉某些库,这种情况下就不能使用--all-database了,而是使用--database。如下备份数据库时过滤掉information_schema、mysql 、test和hehe_db库
[root@fangfull-backup ~]# mysql -uroot -p -e "show databases"
Enter password: +--------------------+
| Database |
+--------------------+
| information_schema |
| haha_db |
| hehe_db |
| mysql |
| test |
| tech_db |
| yaya_db |
| mimi_db |
| lala_db |
+--------------------+
9 rows in set (0.00 sec) [root@fangfull-backup ~]# mysql -uroot -p -e "show databases"|grep -Ev "Database|information_schema|mysql|test|hehe_db"
Enter password:
haha_db
tech_db
yaya_db
mimi_db
lala_db [root@fangfull-backup ~]# mysql -uroot -p -e "show databases"|grep -Ev "Database|information_schema|mysql|test|hehe_db"|xargs
Enter password:
haha_db tech_db yaya_db mimi_db lala_db [root@fangfull-backup ~]# mysql -uroot -p -e "show databases"|grep -Ev "Database|information_schema|mysql|test|hehe_db"|xargs mysqldump -uroot -p --databases > mysql_dump.sql
Enter password:
mysql5.6以上版本在直接使用密码登录mysql的时候,会出现提示信息"Warning: Using a password on the command line interface can be insecure."!
[root@kevin ~]# mysql -pkevin@123 -e "show databases"
Warning: Using a password on the command line interface can be insecure.
+--------------------+
| Database |
+--------------------+
| information_schema |
| confluence |
| dtin_uat |
| dtinlog_uat |
| mysql |
| nextcloud_db |
| performance_schema |
| xbtdb |
+--------------------+
要想屏蔽掉这个提示信息,方法是:将提示信息重定向到/dev/null,即忽略掉提示信息。
[root@kevin ~]# mysql -pkevin@123 -e "show databases" 2>/dev/null
+--------------------+
| Database |
+--------------------+
| information_schema |
| confluence |
| dtin_uat |
| dtinlog_uat |
| mysql |
| nextcloud_db |
| performance_schema |
| xbtdb |
+--------------------+ 过滤掉mysql某些库的操作如下:
[root@kevin ~]# mysql -pkevin@123 -e "show databases" 2>/dev/null |grep -Ev "Database|information_schema|mysql"
confluence
dtin_uat
dtinlog_uat
nextcloud_db
performance_schema
xbtdb