python os.walk|os.system in python ||Python Tutorial #12 || Python Tutorial for Beginners

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python os.walk|os.walk in python |os.system in python |Python Tutorial | Python Tutorial for Beginners
how to walk through files and directories in python | python os.walk example
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This module provides a portable way of using operating system dependent functionality.

===Code===
import os

for root_dir, base_dir, files in os.walk(dir_name):
##commands

cmd = 'ls -lrt /tmpdfd'
print os.system(cmd)


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What is Python ?
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