When copy files from mac to desktop a bunch of hidden files are generated in pendrive. you can easily remove extra Mac files from pendrive with python script. a little script is good enough to clean your pendrive/removable drive from extra Mac files.
Actually these are the files generated by Macintosh Operating System that are exists hidden and has same name starting from ‘._’ as original files. When you copy any file from mac to your pendrive, these files are copied with original files.
Here is a little Python script to remove extra mac files from Pendrive :
import os, shutil path = raw_input("Enter your Pendrive path. e.g I:, j: ") path = path + "\" def remove_known_files(path): known_files = ['.DS_Store','.TemporaryItems','.fseventsd','.Spotlight-V100','.Trashes'] new_known_files =  files = os.listdir(path) for f in files: if f.startswith("._") or f in known_files: new_known_files.append(f) for f in new_known_files: try: if os.path.isdir(path+f): shutil.rmtree(path+f) else: os.unlink(path+f) except: print "can't remove", path+f def remove_mac_files(file_path, file_list): real_files =  temp_files =  # Filter real and fake files for f in file_list: if f.startswith('._'): temp_files.append(f.strip('._')) else: real_files.append(f) # match real and fake file names and delete matched for name in real_files: if name in temp_files: os.unlink(file_path+"\"+"._"+name) remove_known_files(path) drive_files = os.walk(path) for dir_path, dirs, files in drive_files: file_list = os.listdir((dir_path)) remove_mac_files(dir_path, file_list)
Above python script based on Python 2.7 (python 2.x) . you can download it from here