python 删除系统中的文件(按时间,大小,扩展名)
按时间删除文件
#importingtherequiredmodules
importos
importshutil
importtime
#mainfunction
defmain():
#initializingthecount
deleted_folders_count=0
deleted_files_count=0
#specifythepath
path="/PATH_TO_DELETE"
#specifythedays
days=30
#convertingdaystoseconds
#time.time()returnscurrenttimeinseconds
seconds=time.time()-(days*24*60*60)
#checkingwhetherthefileispresentinpathornot
ifos.path.exists(path):
#iteratingovereachandeveryfolderandfileinthepath
forroot_folder,folders,filesinos.walk(path):
#comparingthedays
ifseconds>=get_file_or_folder_age(root_folder):
#removingthefolder
remove_folder(root_folder)
deleted_folders_count+=1#incrementingcount
#breakingafterremovingtheroot_folder
break
else:
#checkingfolderfromtheroot_folder
forfolderinfolders:
#folderpath
folder_path=os.path.join(root_folder,folder)
#comparingwiththedays
ifseconds>=get_file_or_folder_age(folder_path):
#invokingtheremove_folderfunction
remove_folder(folder_path)
deleted_folders_count+=1#incrementingcount
#checkingthecurrentdirectoryfiles
forfileinfiles:
#filepath
file_path=os.path.join(root_folder,file)
#comparingthedays
ifseconds>=get_file_or_folder_age(file_path):
#invokingtheremove_filefunction
remove_file(file_path)
deleted_files_count+=1#incrementingcount
else:
#ifthepathisnotadirectory
#comparingwiththedays
ifseconds>=get_file_or_folder_age(path):
#invokingthefile
remove_file(path)
deleted_files_count+=1#incrementingcount
else:
#file/folderisnotfound
print(f'"{path}"isnotfound')
deleted_files_count+=1#incrementingcount
print(f"Totalfoldersdeleted:{deleted_folders_count}")
print(f"Totalfilesdeleted:{deleted_files_count}")
defremove_folder(path):
#removingthefolder
ifnotshutil.rmtree(path):
#successmessage
print(f"{path}isremovedsuccessfully")
else:
#failuremessage
print(f"Unabletodeletethe{path}")
defremove_file(path):
#removingthefile
ifnotos.remove(path):
#successmessage
print(f"{path}isremovedsuccessfully")
else:
#failuremessage
print(f"Unabletodeletethe{path}")
defget_file_or_folder_age(path):
#gettingctimeofthefile/folder
#timewillbeinseconds
ctime=os.stat(path).st_ctime
#returningthetime
returnctime
if__name__=='__main__':
main()
需要在上面的代码中调整以下两个变量
days=30 path="/PATH_TO_DELETE"
按大小删除文件
#importingtheosmodule
importos
#functionthatreturnssizeofafile
defget_file_size(path):
#gettingfilesizeinbytes
size=os.path.getsize(path)
#returningthesizeofthefile
returnsize
#functiontodeleteafile
defremove_file(path):
#deletingthefile
ifnotos.remove(path):
#success
print(f"{path}isdeletedsuccessfully")
else:
#error
print(f"Unabletodeletethe{path}")
defmain():
#specifythepath
path="ENTER_PATH_HERE"
#putmaxsizeoffileinMBs
size=500
#checkingwhetherthepathexistsornot
ifos.path.exists(path):
#convertingsizetobytes
size=size*1024*1024
#traversingthroughthesubfolders
forroot_folder,folders,filesinos.walk(path):
#iteratingoverthefileslist
forfileinfiles:
#gettingfilepath
file_path=os.path.join(root_folder,file)
#checkingthefilesize
ifget_file_size(file_path)>=size:
#invokingtheremove_filefunction
remove_file(file_path)
else:
#checkingonlyifthepathisfile
ifos.path.isfile(path):
#pathisnotadir
#checkingthefiledirectly
ifget_file_size(path)>=size:
#invokingtheremove_filefunction
remove_file(path)
else:
#pathdoesn'texist
print(f"{path}doesn'texist")
if__name__=='__main__':
main()
调整以下两个变量。
path="ENTER_PATH_HERE" size=500
按扩展名删除文件
在某些情况下，您想按文件的扩展名类型删除文件。假设.log文件。我们可以使用该os.path.splitext(path)方法找到文件的扩展名。它返回一个元组，其中包含文件的路径和扩展名。
#importingosmodule
importos
#mainfunction
defmain():
#specifythepath
path="PATH_TO_LOOK_FOR"
#specifytheextension
extension=".log"
#checkingwhetherthepathexistornot
ifos.path.exists(path):
#checkwhetherthepathisdirectoryornot
ifos.path.isdir(path):
#iteratingthroughthesubfolders
forroot_folder,folders,filesinos.walk(path):
#checkingofthefiles
forfileinfiles:
#filepath
file_path=os.path.join(root_folder,file)
#extractingtheextensionfromthefilename
file_extension=os.path.splitext(file_path)[1]
#checkingthefile_extension
ifextension==file_extension:
#deletingthefile
ifnotos.remove(file_path):
#successmessage
print(f"{file_path}deletedsuccessfully")
else:
#failuremessage
print(f"Unabletodeletethe{file_path}")
else:
#pathisnotadirectory
print(f"{path}isnotadirectory")
else:
#pathdoen'texist
print(f"{path}doesn'texist")
if__name__=='__main__':
#invokingmainfunction
main()
不要忘记更新上面代码中的path和extension变量，以满足您的要求。
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