MySQL - MYSQL scheduled backup code example under Linux

1. Create a shell file

Shell file:

DB_NAME='lyz'
USER='root'
PWD='root'
TIME=$(date +%Y%m%d)
DEL_TIME=$(date --date="7 days ago" +%Y%m%d)
DB_BAK_NAME=tdc_debug${TIME}.sql
DB_DEL_NAME=tdc_debug${DEL_TIME}.sql
BACKUP_PATH='/home/zhaoqun/DB_BAK/day_bak/'
echo $BACKUP_PATH$DB_BAK_NAME
if test -f $BACKUP_PATH$DB_DEL_NAME
then
echo "Delete history dump file"
rm -f $BACKUP_PATH$DB_DEL_NAME
fi

mysqldump -u $USER -p$PWD $DB_NAME>$BACKUP_PATH$DB_BAK_NAME

2. Modify /etc/crontab and customize the task plan Add

01 16 * * * root /home/lyz/DB_BAK/day_bak/day_bak.sh

to

/etc/crontab to perform MYSQL backup at 16:01 every day and keep the backup history for 7 days.

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