本文共 1019 字，大约阅读时间需要 3 分钟。

os.chdir(dump_file_path)

filelist = os.listdir(dump_file_path)

fileinfo = []

count = 0

for file in filelist:

if os.path.isfile(file):

fileinfo.append([file,os.path.getmtime(file)])

count = count+1

else:

pass

index = count - file_count

if index <= 0:

return

for file in sorted(fileinfo, key=lambda fileinfo : fileinfo[1]):

if index >0:

os.remove(file[0])

index = index-1

else:

pass

cmd = 'start ' + dumpcap_path + ' -i ' + str(net_no) + ' -f "' + ip_filter +'"-b filesize:100000 -b files:100 -w ' +dump_file_path+ '\\dumpcap.pcap'

print(cmd)

os.system(cmd)

if os.path.isdir(dump_file_path) == False:

os.makedirs(dump_file_path)

executeCmd()

deleteFile()

转载地址：http://ypqvi.baihongyu.com/