有時會統計某個目錄下有哪些文件，每個文件的sha256及文件大小等相關信息，這里用python3寫了個腳本用來實現此功能，此腳本可跨平臺，同時支持windows和linux，腳本(get_dir_file_info.py)內容如下：

import os
import sys
import hashlibdef Usage():''' usage description '''num = len(sys.argv)if num != 3:print("Error: please input two parameters")print("for example: {} path_name save_file_name".format(sys.argv[0]))sys.exit(1)def GetFilesList():''' get file list '''input_path_name = sys.argv[1]result = list()for dirpath, dirnames, filenames in os.walk(input_path_name, followlinks=True):for filename in filenames:file_path = os.path.join(dirpath, filename)result.append(file_path)result.sort()return resultdef CalcFileSha256(filname):''' calculate file sha256 '''with open(filname, "rb") as f:sha256obj = hashlib.sha256()sha256obj.update(f.read())hash_value = sha256obj.hexdigest()return hash_valuedef CalcFileSize(filename):''' calculate file size '''return os.stat(filename).st_sizedef GetFileContent():''' get file contnet '''files_list = GetFilesList()result = list()for f in files_list:hash = CalcFileSha256(f)size = CalcFileSize(f)file_name = os.path.basename(os.path.realpath(f))path_name = os.path.dirname(os.path.realpath(f))dictionary = {"path": path_name, "filename": file_name, "sha256": hash, "size": size}#print("result: {}".format(dictionary))result.append(dictionary)return resultdef WriteToFile(contents):''' write content to the specified file '''fp = open(sys.argv[2], "w")for content in contents:#print("content:", content)str0 = str(content)str1 = str0.replace("\\\\", "/")fp.write(str1)fp.write("\n")fp.close()def ReplaceStr(src_str, new_str):''' replace source string with new string '''contents = list()fp = open(sys.argv[2], "r")line = fp.readline()while line:contents.append(line)line = fp.readline()fp.close()fp = open(sys.argv[2], "w")for content in contents:str0 = content.replace(src_str, new_str)fp.write(str0)fp.close()def main():Usage()WriteToFile(GetFileContent())ReplaceStr(" ", "")ReplaceStr("'", "\"")if __name__ == "__main__":main()

執行操作如下：

執行結果及生成的prj_file_list.txt內容如下：

GitHub：https://github.com/fengbingchun/Python_Test

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