CRON with python — WebSofter

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Linux Python

Cron system based on python module pycron and command tool tmux. For firs you must create tmux session fro pycron script cron.py and run in tmux terminal this script

$ sudo apt install tmux
$ tmux new-session -s parser
$ source ./venv/bin/activate
$ python cron.py

All code files

import pycron
import time
from subprocess import call
import shlex

while True:
    if pycron.is_now('0 */2 * * *'):   # True Every 2 h
        print('running backup')

        call(shlex.split('bash ./cron.sh'))

        time.sleep(60)               # The process should take at least 60 sec
                                     # to avoid running twice in one minute
    else:
        time.sleep(15)               # Check again in 15 seconds

#!/bin/bash
source ./venv/bin/activate
python ./script.py

import datetime
import glob
import os

######
dir = "./test/"
for zippath in glob.iglob(os.path.join(dir, '*.txt')):
    os.remove(zippath)
######
current_date_and_time = datetime.datetime.now()
current_date_and_time_string = str(current_date_and_time)
extension = ".txt"
file_name =  './test/' + current_date_and_time_string + extension
file = open(file_name, 'w')
file.close()