listdir.py:
import os
import sys
def list_files(path):
if os.path.isdir(path):
print(path + ':')
content = os.listdir(path)
print(content)
for fname in content:
fname = os.path.join(path, fname)
list_files(fname)
if __name__ == '__main__':
list_files(sys.argv[1]) # python3 listdir.py /etc
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