linux监控服务器磁盘、内存空间使用率到达90%发送邮件脚本

以下是一个使用Python编写的Linux监控服务器磁盘、内存空间使用率并在达到90%时发送邮件的脚本：

import os
import smtplib
from email.mime.text import MIMEText
from email.header import Header# 设置阈值
DISK_THRESHOLD = 90
MEMORY_THRESHOLD = 90# 获取磁盘使用率
def get_disk_usage():disk = os.statvfs("/")total = disk.f_blocks * disk.f_frsizeused = (disk.f_blocks - disk.f_bfree) * disk.f_frsizeusage = int(used / total * 100)return usage# 获取内存使用率
def get_memory_usage():with open('/proc/meminfo', 'r') as mem:free_memory = 0total_memory = 0for i in mem:sline = i.split()if str(sline[0]) == 'MemTotal:':total_memory = int(sline[1])elif str(sline[0]) in ('MemFree:', 'Buffers:', 'Cached:'):free_memory += int(sline[1])used_memory = total_memory - free_memoryusage = int(used_memory / total_memory * 100)return usage# 发送邮件
def send_email(subject, content):sender = 'your_email@example.com'receivers = ['receiver_email@example.com']message = MIMEText(content, 'plain', 'utf-8')message['From'] = Header("Server Monitor", 'utf-8')message['To'] = Header("Admin", 'utf-8')message['Subject'] = Header(subject, 'utf-8')try:smtpObj = smtplib.SMTP('localhost')smtpObj.sendmail(sender, receivers, message.as_string())print("邮件发送成功")except smtplib.SMTPException:print("Error: 无法发送邮件")# 主函数
def main():disk_usage = get_disk_usage()memory_usage = get_memory_usage()if disk_usage >= DISK_THRESHOLD or memory_usage >= MEMORY_THRESHOLD:subject = "服务器资源告警"content = f"磁盘使用率：{disk_usage}%，内存使用率：{memory_usage}%"send_email(subject, content)if __name__ == '__main__':main()