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大文件分割、命名脚本 - Python

yimo~
2019-09-29 17:58:53

日志文件分割、命名

工作中经常会收到测试同学、客户同学提供的日志文件,其中不乏几百M一G的也都有,毕竟压测一晚上产生的日志量还是很可观的,xDxD,因此不可避免的需要对日志进行分割,通常定位问题需要针对时间点,因此最好对分割后的日志文件使用文件中日志的开始、结束时间点来命名,这样使用起来最为直观,下面给大家分享两个脚本,分别作分割、命名,希望能够给大家提供一点点帮助;

大文件分割

用法:

  1. python split_big_file.py
  2. 输入文件全路径名
  3. 输入期望的分割后每个小文件的行数
  4. Just wait.

代码如下:

 # -*- coding:utf-8 -*-

    import os,re,shutil
    import platform

    sys_name = platform.system().lower()
    SPLIT_CHAR = '\' if sys_name.find('windows') != -1 else '/'

    print('input big files`s path:')
    _path = raw_input()
    names = []
    pathes = []
    if os.path.isfile(_path):
        print('is file')
        names.append(_path)
    else:
        print('is nothing')
    '''
    elif os.path.isdir(_path):
        print('This is dir')
        pathes = os.listdir(_path)
        print('pathes='+str(pathes))
        for i in range(len(pathes)):
            fullpath = _path+SPLIT_CHAR+pathes[i]
            print('fullpath='+fullpath)
            if os.path.isfile(fullpath):
                names.append(fullpath)
                files.append(open(fullpath).read().split('n'))
    '''
        
    print(len(names))

    line_num = int(raw_input('every file`line num = '))
    print('line number='+str(line_num))

    for i in range(len(names)):
        _name = names[i]
        ori_name = _name.split(SPLIT_CHAR)[len(_name.split(SPLIT_CHAR))-1]
        dir_name = _name.replace(ori_name,'DIR_'+ori_name)
        dir_name = dir_name.replace('.','_')
        print ori_name
        print dir_name
        os.system('mkdir '+dir_name)
        count = 1
        print '已处理:'+str(count)+'行'
        part_file = open(dir_name+SPLIT_CHAR+str(0)+'.part.txt','w')
        with open(_name, 'rb') as f:
            for line in f:
            if count%line_num == 0:
                part_file.close()
                part_file = open(dir_name+SPLIT_CHAR+str(int(count/line_num))+'.part.txt','w')
            part_file.write(line+'n')
            count+=1
            if count%100000 == 0:
                print '已处理:'+str(count)+'行'
        print '已处理:'+str(count)+'行'
        os.system('python ./get_name_logfile.py '+dir_name)

文件按照开始、结束行时间戳重命名

用法:

  • python get_name_logfile.py log.txt
  • python get_name_logfile.py logs

参数选择文件或者文件夹均可,如果是文件夹,则会针对文件夹中的每个文件做处理(不会递归到文件夹下文件夹中的文件哦);

代码如下:

 # -*- coding:utf-8 -*-


    import os,re,shutil
    import sys
    import platform

    sys_name = platform.system().lower()
    SPLIT_CHAR = '\' if sys_name.find('windows') != -1 else '/'

    _path = sys.argv[1]
    names = []
    files = []
    pathes = []
    if os.path.isfile(_path):
        print('is file')
        names[0] = _path
    elif os.path.isdir(_path):
        print('This is dir')
        pathes = os.listdir(_path)
        print('pathes='+str(pathes))
        for i in range(len(pathes)):
            fullpath = _path+SPLIT_CHAR+pathes[i]
            print('fullpath='+fullpath)
            if os.path.isfile(fullpath):
                names.append(fullpath)
    else:
        print('is nothing')
        
    print(len(names))

    #   日期格式 : 05-26 18:20:42.093   r'd{4}-d{2}-d{2}Td{2}:d{2}:d{2}.d{3}'
    #   
    #   05-26 18:20:43.093:r'd{2}-d{2} {1,}d{2}:d{2}:d{2}.d{1,10}'

    date_reg = r'd{2}-d{2} {1,}d{2}:d{2}:d{2}.d{1,10}'
    time_reg = r'd{2}:d{2}:d{2}.d{1,10}'

    for i in range(len(names)):
        _name = names[i]
        print('name='+_name)
        # head 尝试在10行内查找日期
        head_len = 10
        start_time = '(start_time-'
        _file_ = open(_name, 'rb')
        reads = _file_.read()
        _file = reads.split('n')
        if len(_file)/2 < 10:
            head_len = len(_file)/2
        for j in range(head_len):
            res = re.search(date_reg, _file[j])
            if res!=None and res.group(0)!=None:
                start_time = res.group(0)
                print('start_time='+start_time)
                break
        # tail
        tail_len = len(_file)-head_len
        end_time = '-end_time)'
        for j in range(len(_file)-1,tail_len-1,-1):
            res = re.search(time_reg, _file[j])
            if res!=None and res.group(0)!=None:
                end_time = res.group(0)
                print('end_time='+end_time)
                break
        _file_.close()
        ori_name = _name.split(SPLIT_CHAR)[len(_name.split(SPLIT_CHAR))-1]
        print('ori_name='+ori_name)
        new_name = start_time.replace(':','-')+'__'+end_time.replace(':','-')+os.path.splitext(ori_name)[1]
        print('new_name='+new_name)
        print("copy %s %s" % (_name, _name.replace(ori_name,new_name)))
        #os.system ("copy %s %s" % (_name, _name.replace(ori_name,new_name)))
        shutil.copy(_name,_name.replace(ori_name,new_name))
        os.system ("rm -rf "+_name)

最后

大家可以到我的Github上看看有没有其他需要的东西,目前主要是自己做的机器学习项目、Python各种脚本工具、数据分析挖掘项目以及Follow的大佬、Fork的项目等:
https://github.com/NemoHoHaloAi

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