Read direcory in Python

'''
    File name: dir_read.py
    Author: Prabhath Kota
    Date: June 22, 2018
    Python Version: 2.7
'''

import glob
import os

rootdir = 'Exercise'

print '------------glob------------------'
#List only python files
glob_root_dir = os.path.join(rootdir, '*.py')
arr_list = glob.glob(glob_root_dir)
for each_file in arr_list:
    print(each_file)

print '------------listdir------------------'
#List only txt files
for each_file in os.listdir(rootdir):
    file_path = os.path.join(rootdir,each_file)
    file_base, extension = os.path.splitext(file_path)
    #print extension
    if os.path.isfile(file_path) and extension == '.txt':
        print each_file
print '######'
for each_file in os.listdir(rootdir):
    print(each_file)

print '------------os.walk------------------'
for root, dirs, files in os.walk(rootdir):
    print '---Each loop'
    print root
    if dirs:
        print '###### Dirs'
        for file in dirs:
            print os.path.join(root, file)
    print '###### Files'
    for file in files:
        print os.path.join(root, file)

How to find the size of a directory in linux

We all know "du" command gives the size of the files, but it not convenient to read or understand the size as "du" command gives the size in KB's

In order to  make is human readable format, please follow as mentioned below


du -lsh <directory_name>

du -lsh <file_name>

-h => display the size in human readable format

e.g.,
>> du  -lsh  prabhath_movies
5GB  prabhath_movies

>> du  -lsh  hero.avi
1GB   hero.avi


Thanks for going through this article, Have a good day :-)