Python开发【笔记】：获取目录下所有文件

获取文件

import os

def sub_dirs(rdir):
    li = os.listdir(rdir)
    return li

def main(rdir):
    content = sub_dirs(rdir)
    for i in content:
        i = os.path.join(rdir,i)
        if os.path.isdir(i):
            main(i)
        else:
            print(i)

main('/home/tvrecord')

定时删除目录下时间大于10天的文件

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import os
import time
import sys
import logging
import datetime
import threading

# 检测目录
ROOT_DIR = '/data2/log2/'
# 保留10天文件
SAVE_DATE = 10
# 开始时间小时
START_HOUR = 2
# 开始时间分钟
START_MINUTE = 00

def daemon():
    import os
    # create - fork 1
    try:
        pid = os.fork()
        if pid > 0:
            return pid
    except OSError as error:
        logging.error('fork #1 failed: %d (%s)' % (error.errno, error.strerror))
        return -1
    # it separates the son from the father
    os.chdir('/opt/pbx')
    os.setsid()
    os.umask(0)
    # create - fork 2
    try:
        pid = os.fork()
        if pid > 0:
            return pid
    except OSError as error:
        logging.error('fork #2 failed: %d (%s)' % (error.errno, error.strerror))
        return -1
    sys.stdout.flush()
    sys.stderr.flush()
    si = open("/dev/null", 'r')
    so = open("/dev/null", 'ab')
    se = open("/dev/null", 'ab', 0)
    os.dup2(si.fileno(), sys.stdin.fileno())
    os.dup2(so.fileno(), sys.stdout.fileno())
    os.dup2(se.fileno(), sys.stderr.fileno())
    return 0

def set_log():
    logging.basicConfig(filename="/data2/log2/delete_log", level=logging.INFO,
                        format="%(asctime)s  [%(filename)s:%(lineno)d] %(message)s", datefmt="%m/%d/%Y %H:%M:%S [%A]")

def sub_dirs(rdir):
    '''
    获取目录下所有文件
    :param rdir:
    :return:
    '''
    li = os.listdir(rdir)
    return li

def get_files(rdir):
    '''
    获取文件路径
    :param rdir:
    :return:/data2/log2/ariservice7/ari.log.10
    '''
    content = sub_dirs(rdir)
    for i in content:
        i = os.path.join(rdir, i)
        if os.path.isdir(i):
            yield from get_files(i)
        else:
            yield i

def timer():
    '''
    设置定时
    :return:
    '''
    _date = datetime.datetime.now()
    excute_time = '%s %s:%s' % (time.strftime('%Y-%m-%d'), START_HOUR, START_MINUTE)
    excute_time = time.strptime(excute_time, '%Y-%m-%d %H:%M')
    excute_time = time.mktime(excute_time)
    if _date.hour > START_HOUR:
        excute_time += 24 * 60 * 60
    elif _date.hour == START_HOUR and _date.minute >= START_MINUTE:
        excute_time += 24 * 60 * 60
    logging.info('timer wait %s', excute_time - time.time())
    timer = threading.Timer(excute_time - time.time(), execute, )
    timer.start()

def execute():
    '''
    主任务
    :return:
    '''
    delete_time = time.time() - 24*60*60*SAVE_DATE
    logging.info('delete time[%s]',delete_time)
    for file in get_files(ROOT_DIR):
        file_time = os.path.getmtime(file)
        logging.info('prepare delete file[%s] delete_time[%s] file_time[%s]',file,delete_time,file_time)
        if file_time < delete_time:
            os.remove(file)
            logging.info('deleted file[%s]',file)
            time.sleep(1)
    timer()

def main():
    set_log()
    pid = daemon()
    if pid:
        return pid
    execute()

if __name__ == '__main__':
    main()