Python: os模块实例详解

import os

操作文件

# to create some file
touch foo.txt
echo Hello > foo.txt
cat foo.txt

Hello

# rename file
os.rename('foo.txt','bar.txt')
!cat bar.txt

Hello

# remove file
os.remove('bar.txt')

改变目录

# current dir
print os.getcwd() # current working directory

/Users/yongle/OMOOC2py/cheat

# go down
os.chdir('img')
print os.getcwd()

# go back up
os.chdir(os.pardir) #or simply os.chdir('..')
print os.getcwd()

/Users/yongle/OMOOC2py/cheat/