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這期內容當中小編將會給大家帶來有關利用python如何實現按條件刪除系統文件，文章內容豐富且以專業的角度為大家分析和敘述，閱讀完這篇文章希望大家可以有所收獲。
按時間刪除文件
# importing the required modules
import os
import shutil
import time
# main function
def main():
# initializing the count
deleted_folders_count = 0
deleted_files_count = 0
# specify the path
path = "/PATH_TO_DELETE"
# specify the days
days = 30
# converting days to seconds
# time.time() returns current time in seconds
seconds = time.time() - (days * 24 * 60 * 60)
# checking whether the file is present in path or not
if os.path.exists(path):
# iterating over each and every folder and file in the path
for root_folder, folders, files in os.walk(path):
# comparing the days
if seconds >= get_file_or_folder_age(root_folder):
# removing the folder
remove_folder(root_folder)
deleted_folders_count += 1 # incrementing count
# breaking after removing the root_folder
break
else:
# checking folder from the root_folder
for folder in folders:
# folder path
folder_path = os.path.join(root_folder, folder)
# comparing with the days
if seconds >= get_file_or_folder_age(folder_path):
# invoking the remove_folder function
remove_folder(folder_path)
deleted_folders_count += 1 # incrementing count
# checking the current directory files
for file in files:
# file path
file_path = os.path.join(root_folder, file)
# comparing the days
if seconds >= get_file_or_folder_age(file_path):
# invoking the remove_file function
remove_file(file_path)
deleted_files_count += 1 # incrementing count
else:
# if the path is not a directory
# comparing with the days
if seconds >= get_file_or_folder_age(path):
# invoking the file
remove_file(path)
deleted_files_count += 1 # incrementing count
else:
# file/folder is not found
print(f'"{path}" is not found')
deleted_files_count += 1 # incrementing count
print(f"Total folders deleted: {deleted_folders_count}")
print(f"Total files deleted: {deleted_files_count}")
def remove_folder(path):
# removing the folder
if not shutil.rmtree(path):
# success message
print(f"{path} is removed successfully")
else:
# failure message
print(f"Unable to delete the {path}")
def remove_file(path):
# removing the file
if not os.remove(path):
# success message
print(f"{path} is removed successfully")
else:
# failure message
print(f"Unable to delete the {path}")
def get_file_or_folder_age(path):
# getting ctime of the file/folder
# time will be in seconds
ctime = os.stat(path).st_ctime
# returning the time
return ctime
if __name__ == '__main__':
main()需要在上面的代碼中調整以下兩個變量
days = 30 path = "/PATH_TO_DELETE"
按大小刪除文件
# importing the os module
import os
# function that returns size of a file
def get_file_size(path):
# getting file size in bytes
size = os.path.getsize(path)
# returning the size of the file
return size
# function to delete a file
def remove_file(path):
# deleting the file
if not os.remove(path):
# success
print(f"{path} is deleted successfully")
else:
# error
print(f"Unable to delete the {path}")
def main():
# specify the path
path = "ENTER_PATH_HERE"
# put max size of file in MBs
size = 500
# checking whether the path exists or not
if os.path.exists(path):
# converting size to bytes
size = size * 1024 * 1024
# traversing through the subfolders
for root_folder, folders, files in os.walk(path):
# iterating over the files list
for file in files:
# getting file path
file_path = os.path.join(root_folder, file)
# checking the file size
if get_file_size(file_path) >= size:
# invoking the remove_file function
remove_file(file_path)
else:
# checking only if the path is file
if os.path.isfile(path):
# path is not a dir
# checking the file directly
if get_file_size(path) >= size:
# invoking the remove_file function
remove_file(path)
else:
# path doesn't exist
print(f"{path} doesn't exist")
if __name__ == '__main__':
main()調整以下兩個變量。
path = "ENTER_PATH_HERE" size = 500
按擴展名刪除文件
在某些情況下，您想按文件的擴展名類型刪除文件。假設.log文件。我們可以使用該os.path.splitext(path)方法找到文件的擴展名。它返回一個元組，其中包含文件的路徑和擴展名。
# importing os module
import os
# main function
def main():
# specify the path
path = "PATH_TO_LOOK_FOR"
# specify the extension
extension = ".log"
# checking whether the path exist or not
if os.path.exists(path):
# check whether the path is directory or not
if os.path.isdir(path):
# iterating through the subfolders
for root_folder, folders, files in os.walk(path):
# checking of the files
for file in files:
# file path
file_path = os.path.join(root_folder, file)
# extracting the extension from the filename
file_extension = os.path.splitext(file_path)[1]
# checking the file_extension
if extension == file_extension:
# deleting the file
if not os.remove(file_path):
# success message
print(f"{file_path} deleted successfully")
else:
# failure message
print(f"Unable to delete the {file_path}")
else:
# path is not a directory
print(f"{path} is not a directory")
else:
# path doen't exist
print(f"{path} doesn't exist")
if __name__ == '__main__':
# invoking main function
main()上述就是小編為大家分享的利用python如何實現按條件刪除系統文件了，如果剛好有類似的疑惑，不妨參照上述分析進行理解。如果想知道更多相關知識，歡迎關注億速云行業資訊頻道。
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