map a command(function) to all the files in current directory.

Mapwalk.py

#!/usr/bin/env python
#-*- coding:utf-8 -*-
"""
Walking the destination directory(arg3) and using the command(arg2)
to process every file.

USAGE: 
	Mapwalk `function` /path/to/walk
"""
import sys
reload(sys)
sys.setdefaultencoding('utf-8')

import os.path
 
def walk_dir(dir, cmd="", topdown=True):
	for root, dirs, files in os.walk(dir, topdown):
		for name in files:
			opf = os.path.join(name)
			exe = "%s '%s'" % (cmd, opf)

			print exe
			os.system(exe)

if __name__ == '__main__':
	walk_dir("./", sys.argv[1])

直接用find就可以了吧，find的过滤功能还更强大