mysql-linux定時備份mysql數據庫

sh腳本

#!/bin/bash
db_user="數據庫用戶名"
db_passwd="數據庫密碼"
db_name="數據庫名"
cd /進入備份文件目錄/bakmysql
echo "you are in bakmysql directory now"
mv 備份文件名* /新的備份目錄/bakmysqlold
echo "Old databases are moved to bakmysqlold folder"
backup_dir="/備份文件目錄/bakmysql"
time=$(date +"%Y-%m-%d")
mysqldump -u$db_user -p$db_passwd $db_name  > "$backup_dir/$db_name"-"$time.sql"
echo "your database backup successfully completed"
SevenDays=$(date -d -30day  +"%Y-%m-%d")
if [ -f /備份文件目錄/bakmysqlold/$db_name-$SevenDays.sql ]
then
rm -rf /備份文件目錄/bakmysqlold/$db_name-$SevenDays.sql
echo "you have delete 30days ago bak sql file "
else
echo "30days ago bak sql file not exist "
echo "bash complete"
fi