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网站数据自动备份：一个脚本+一个计划任务搞定_我的网站

小遥17岁

一 |

Staff members of State Grid Huzhou power supply company conduct inspection on the photovoltaic lines and equipment at a photovoltaic power station in Changxing County of Huzhou City, east China's Zhejiang Province, May 27, 2026. In recent years, State Grid Huzhou power supply company has been constantly promoting the upgrading of the county-level power grids, advancing the integration of renewable energy sources into power grids, and endeavoring to construct a safer, greener and smarter power grid. (Photo: Xinhua)
Eight Chinese leading polysilicon producers have issued public pledges to stop selling solar products below a cost benchmark, in a fresh industry effort to curb "involution-style" competition and support healthier pricing in the country's photovoltaic supply chain, the Shanghai Securities Journal reported on Friday.
Industry experts said that this move will not only help stabilize profits across the sector, but also promote the Chinese photovoltaics (PV) industry's shift toward high-quality development.
The eight companies jointly committed that the selling prices of all photovoltaic products, including tender bids, must not fall below the corresponding cost calculated under the group standard General Principles for Cost Accounting Models in the Photovoltaic Industry. Any sales below full cost must be "immediately stopped and corrected," according to the report.
The pledge was signed in Shanghai on Thursday by the companies, including four listed companies — Tongwei Solar Co, GCL Technology Holdings Limited, Daqo New Energy Co, Xinte Energy Co. The other four companies are Asia Silicon (Qinghai) Co, Xinjiang East Hope New Energy Co, Qinghai Lihao Qingneng Co, and Xinjiang Goens Energy Technology Co.
Together, the eight companies account for more than 90 percent of China's effective polysilicon production capacity, the Shanghai Securities Journal report said.
Under the initiative, the companies also agreed to accept supervision and inspections from market regulators at all levels and to strengthen mutual oversight. If they discover illegal below-cost sales, they are required to report the issue and file complaints with the industry association and the State Administration for Market Regulation (SAMR).
In addition, the firms committed to strictly implementing China's new energy-consumption standards and to proactively eliminate outdated, high-energy-consuming production capacity.
The move comes just one week after the SAMR held a solar industry price-compliance meeting on July 31, urging solar PV companies to strengthen price compliance and shift competition from price to quality.
It instructed companies to strengthen cost accounting, establish and improve price compliance systems, and carry out comprehensive self-inspections and corrective actions, according to the Xinhua News Agency.
Industry experts welcomed the initiative, saying that years of excessive competition have pushed many photovoltaic firms into losses, which is harmful to the industry's long-term development.
China's PV industry is mired in severe low-price competition, with profit margins squeezed along the entire value chain and many firms operating at a loss, Xiang Ligang, director-general of the Zhongguancun Modern Information Consumer Application Industry Technology Alliance, told the Global Times on Friday.
Xiang added that the initiative could help ensure more reasonable revenue and profit levels, which are essential for sustainable industrial development. The move also reflects a broader shift among Chinese firms toward greater coordination in responding to market pressures.
Although the industry also faces external challenges, including US tariffs on polysilicon-related products, Xiang said the main purpose of the initiative is to improve the sector's own development model rather than simply respond to foreign trade measures.
China has launched sweeping efforts to curb "involution-style" low-price competition and accelerate the phase-out of outdated industrial capacity. China's Ministry of Industry and Information Technology on July 3 held a symposium for manufacturing enterprises, focusing on accelerating the high-quality development of the photovoltaics industry, according to the Xinhua News Agency.
The symposium called for efforts to comprehensively deal with the problem of disorderly price competition in the photovoltaics industry in accordance with laws and regulations, as well as efforts to guide enterprises to improve product quality, phase out backward production capacities in an orderly manner and achieve healthy and sustainable development, Xinhua reported.
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二 |

　一键部署OpenClaw 网站备份是出事之后最后悔没做的东西。很多人服务器被黑后才发现数据库没备份，几年的内容一夜归零。其实一个shell脚本加一个定时任务就能解决。下面这个脚本同时备份MySQL数据库和网站源码，按日期命名，保留最近7天。Linux服务器直接放到/root/backup.sh，Windows可以改成PowerShell版本，或者把Linux脚本放在宝塔面板的Shell终端里执行。

#!/bin/bash
SITE_DIR="/www/wwwroot/yoursite"
DB_NAME="yourdb"
DB_USER="root"
DB_PASS="yourpass"
BACKUP_DIR="/backup/$(date +%Y%m%d)"
 
mkdir -p $BACKUP_DIR
 
# 备份数据库
mysqldump -u$DB_USER -p$DB_PASS --single-transaction $DB_NAME | gzip > $BACKUP_DIR/db.sql.gz
 
# 备份网站文件
tar -czf $BACKUP_DIR/files.tar.gz -C $(dirname $SITE_DIR) $(basename $SITE_DIR)
 
# 删除7天前的备份
find /backup -maxdepth 1 -type d -mtime +7 -exec rm -rf {} \;

脚本写好之后加一条crontab，每天凌晨3点执行。备份文件建议再同步一份到对象存储，比如阿里云OSS或腾讯云COS，做到异地容灾。 # crontab -e 0 3 * * * /bin/bash /root/backup.sh >> /var/log/backup.log 2>&1 数据来源：MySQL Reference Manual 8.0（mysqldump），Linux crontab官方文档

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Published on:11:35:55

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