设置debian自动更新

autoupdate_setup.sh

#!/bin/bash

# 1. 创建脚本文件 /root/apt-update.sh
echo '#!/bin/bash' | sudo tee /root/apt-update.sh > /dev/null
echo 'apt update && apt upgrade -y && apt autoremove -y' | sudo tee -a /root/apt-update.sh > /dev/null

# 2. 自动在 crontab 最后添加任务
(crontab -l; echo '0 */12 * * * /root/apt-update.sh') | sort - | uniq - | crontab -

# 3. 赋予权限
sudo chmod +x /root/apt-update.sh

# 4. 测试定时任务是否能正常运行
echo "Testing the scheduled task..."
/root/apt-update.sh

# 5. 最后执行一次 apt update && apt upgrade -y && apt autoremove -y
echo "Executing the update and upgrade..."
sudo apt update && sudo apt upgrade -y && sudo apt autoremove -y

echo "Setup completed."