写一个python脚本监控在linux中的进程

在虚拟机中安装Linux中的CentOS7系统

https://baijiahao.baidu.com/s?id=1597320700700593557&wfr=spider&for=pc

因为安装的centos7的python版本为2.7我们要将他的版本升为3.5

安装依赖

shell> yum -y install zlib-devel \
               bzip2-devel openssl-devel ncurses-devel \
               sqlite-devel readline-devel tk-devel \
               gdbm-devel db4-devel libpcap-devel xz-devel

下载编译安装

shell> cd /usr/local/src/
shell> wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz
shell> tar xf Python-3.6.5.tgz
shell> cd Python-3.6.5
shell> ./configure --prefix=/usr/local/python3.6.5
shell> make -j 4 && make install
shell> ln -s /usr/local/python3.6.5 /usr/local/python3
shell> echo -e '# Python PATH\nexport PATH=/usr/local/python3/bin:$PATH' >>/etc/profile
shell> source /etc/profile
shell> python3 -m pip install --upgrade pip

写一个在linux系统中持续运行的后台程序

import time
def sleeptime(hour,min,second):
        return hour * 3600 + min * 60 + second
a =1
sec=sleeptime(0, 0, 5)
while a == 1:
    time.sleep(sec)
    print('kaishizhixing')

每隔5秒输出一次也可以直接写一个跟简单的

a = 1
while a =1:
        print('kaishizhixing"）

写一个监控脚本检测程序是否一致在执行

我们可以在shell命令中查询程序的状态

ps -ef|grep jiaoben.py

15589和13784是该进程的主id和副id

编写一个监控进程，监控此脚本是否一直运行。

import os
import re
import datetime
import paramiko
import smtplib
from email.mime.text import MIMEText
from email.header import Header

process ="/home/languid/jiaoben.lock"
os.system("ps -ef|grep jiaoben.py|grep -v grep >%s" % process)
if not(os.path.getsize(process)):
    os.system("nohup /home/languid/jiaoben.py %")
    baocuoemali()
else:
    print("脚本正常！")

再增加一个当脚本发生错误时的邮件通知。

#!/usr/bin/python3
 
import smtplib
from email.mime.text import MIMEText
from email.header import Header
 
sender = 'from@baocuo.com'
receivers = ['626549364@qq.com']  

message = MIMEText('脚本错误...', 'plain', 'utf-8')
message['From'] = Header("languid", 'utf-8')     
message['To'] =  Header("测试", 'utf-8')
 
subject = 'Python SMTP 报错'
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")

来源：oschina

链接：https://my.oschina.net/u/4392265/blog/3565454

标签

python

pip

Linux

CentOS

libpcap