我有一个小脚本我正在研究哪些"碎片"单个文件(文件的字节为零),我试图使它可以根据它是否通过命令行接收-file或-directory标志/ arg来粉碎目录中的每个文件。 它对单个文件工作正常,但我得到了:
IsADirectoryError: [Errno 21] 'Path/To/Directory' error when trying to use it on all files in a directory
。我已经尝试了几种方法来安排循环,以便它们可以工作,但到目前为止还没有。我希望有人能帮助我纠正这个问题。
我已设置argparser
,因此-F file, -D directory, -s srcpath, -i iterations
以及与bar有关的任何内容都只是我的进度条,其中显示了脚本在运行过程中的进度。
这是我的代码:
parser= argparse.ArgumentParser()
parser.add_argument('-F', '--file', action=store_true)
parser.add_argument('-D', '--directory', action=store_true)
parser.add_argument('-s', '--source', required=True, type=str)
parser.add_argument('-i', '--iterations', required=True, type=int)
args = parser.parse_args()
bar = Bar ("Progress: ", max=args.iterations)
srcpath = "path/to/file/"
def shredfile(source, filebytes):
with open(source, 'r+b') as f:
byte = f.read(1)
while byte:
f.write(filebytes)
byte = f.read(1)
zeros = ("0000000").encode('UTF-8')
if args.file:
x=0
for x in range (args.iterations):
shredfile(srcpath, zeros)
bar.next()
bar.finish()
print("Completed")
if args.directory:
for d in os.listdir(srcpath):
x=0
for x in range (args.iterations):
shredfile(srcpath, zeros)
bar.next()
bar.finish()
print("Completed")
答案 0 :(得分:1)
os.listdir
返回目录
for f in os.listdir(srcpath):
full_path = os.path.join(f, srcpath)
...
shredfile(full_path, zeros)
...
print("Completed")
答案 1 :(得分:0)
答案 2 :(得分:0)
这是一种正确的方法。你只需添加你的部分,如进度条和参数解析。 您还需要添加一些try-except块来控制OSErrors上发生的事情,例如拒绝权限和类似的东西。
import sys
import os
def shredfile (source, filebytes=16*"\0"):
f = open(source, "rb")
f.seek(0, 2)
size = f.tell()
f.close()
if len(filebytes)>size:
chunk = filebytes[:size]
else:
chunk = filebytes
f = open(source, "wb")
l = len(chunk)
n = 0
while n+l<size:
f.write(chunk)
n += l
# Ensure that file is overwritten to the end if size/len(filebytes)*len(filebytes) is not equal to size
chunk = filebytes[:size-f.tell()]
if chunk: f.write(chunk)
f.close()
def shreddir (source, filebytes=16*"\0", recurse=0):
for x in os.listdir(source):
path = os.path.join(source, x)
if os.path.isfile(path):
shredfile(path, filebytes)
continue
if recurse:
shreddir(path, filebytes, 1)
def shred (source, filebytes=16*"\0", recurse=0):
if os.path.isdir(source):
shreddir(source, filebytes, recurse)
return
shredfile(source, filebytes)
if len(sys.argv)>1:
print "Are you sure you want to shred '%s'?" % sys.argv[-1],
c = raw_input("(Yes/No?) ").lower()
if c=="yes":
shred(sys.argv[-1])
# Here you can iterate shred as many times as you want.
# Also you may choose to recurse into subdirectories which would be what you want if you need whole directory shredded