#!/bin/bash
# 数据库备份脚本 (每天执行)

BACKUP_DIR="/var/backups/xiaocai"
DATE=$(date +%Y%m%d_%H%M%S)

mkdir -p "$BACKUP_DIR"

mysqldump -u xiaocai -pxiaocai123 xiaocai | gzip > "$BACKUP_DIR/xiaocai_$DATE.sql.gz"

# 保留最近 7 天的备份
find "$BACKUP_DIR" -name "*.sql.gz" -mtime +7 -delete

echo "备份完成: $BACKUP_DIR/xiaocai_$DATE.sql.gz"