#!/usr/bin/python

import os
import string

if not os.fork():
    os.system('du -a . >/dev/null 2>/dev/null')
    os._exit(0)
if not os.fork():
    os.system('cat ./* >/dev/null 2>/dev/null')
    os._exit(0)
if not os.fork():
    os.system('cat ./*/* >/dev/null 2>/dev/null')
    os._exit(0)

for file in os.listdir('.'):
    if file.endswith('.py'):
        modulename = file[:-3]
        for ch in modulename:
            if ch not in (string.letters + string.digits + '_'):
                break
        else:
            os.system('python -c "import {}" >/dev/null'.format(modulename))

os.wait()
os.wait()
os.wait()