Cronjob backup script

new_backup_system.py

#!/usr/bin/python3 
import os, os.path
import sys 
import time 
from datetime import datetime 

def help(): 
    print("Data reaper!")
    print("Written by: @0xdeadbeer")
    print(" - first_param: list containing file locations to backup")
    print(" - second_param: new backup output directory")
    print(" - third_param: backup filename prefix")
    print(" - fourth: backups limit")
    print(" - $ZIP_PASSWORD: password for the zip") 
    
# first_param: list containing file locations to backup
# second_param: new backup output directory
# third_param: backup filename prefix
# fourth_param: backups limit 

def main():
    if (len(sys.argv) != 5): 
        help()
        return

    # set environment variables 
    print("ZIP_PASSWORD " + os.getenv("ZIP_PASSWORD"))

    backup_links = open(sys.argv[1], "r")
    to_backup = []

    for line in backup_links:
        line = line.strip()
        if (not line): continue
        if (line[0] == "#"): continue

        to_backup.append(line)

    to_backup = " ".join(to_backup)
    backup_dir = sys.argv[2]

    now = datetime.now().strftime("%d_%m_%y_%H_%M_%S")
    backup_filename = f"{sys.argv[3]}_{now}"

    output_location = f"{backup_dir}/{backup_filename}.zip"

    os.system(f"zip --password $ZIP_PASSWORD -r {output_location} {to_backup}")

    # number of items in folder
    backups_number = len([name for name in os.listdir(backup_dir)])
    print("Number of backups " + str(backups_number))

    while (backups_number > int(sys.argv[4])):
        os.system(f"rm -rf $(ls -t -d {backup_dir}/* | tail -1)")
        backups_number = len([name for name in os.listdir(backup_dir)])

    # we are done gg guys

if __name__ == "__main__":
    main()