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Recovery instructions updated and made sure it also works for databases with a dash in the name

This commit is contained in:
Yavuz Aydın 2021-10-12 17:09:09 +02:00
parent 4c576d74e3
commit 70704f9702
1 changed files with 17 additions and 7 deletions
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README.md
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@ -63,13 +63,23 @@ This will add a cronjob to root which will run this script daily at 0:10 am. Adj
## Recover database ##
Assuming you want to restore mytestdb from your backups made on 20190121-1540:
Assuming you want to restore my-testdb from your backups made on 20211012-0010, define variables:
```
DB='my-testdb'
NEWDB='my-testdb'
BACKUPDIR='/var/backup/mysql/20211012-0010'
```
Make sure you have a backup of the current database which will be replaced:
```
DB='mytestdb'
BACKUPDIR='/var/backup/mysql/20190121-1540'
sudo mysqldump ${DB} > /root/${DB}-$(date +%Y%m%d).sql
sudo mysql -e "DROP DATABASE ${DB}"
sudo mysql -e "CREATE DATABASE ${DB}"
for table in ${BACKUPDIR}/${DB}/*; do gunzip -c $table | sudo mysql ${DB}; done
sudo mysqldump ${NEWDB} > /root/${NEWDB}-$(date +%Y%m%d).sql
```
And now the actual recovery (Need to be in the same session! Do not enter this in another SSH window / terminal):
```
sudo mysql -e 'DROP DATABASE IF EXISTS `'${NEWDB}'`'
sudo mysql -e 'CREATE DATABASE `'${NEWDB}'`'
for table in ${BACKUPDIR}/${DB}/*; do gunzip -c $table | sudo mysql ${NEWDB}; done
```
You can change NEWDB to any other name if you wish to restore to an alternate database name!