# sr 11/19/2013

# common file operations in os and shutil modules

import shutil

import os

# Getting files of particular type from directory

files = [f for f in os.listdir(s_pdb_dir) if f.endswith(".txt")]

# Copy and move

shutil.copyfile("/path/to/file", "/path/to/new/file")

shutil.copy("/path/to/file", "/path/to/directory")

shutil.move("/path/to/file","/path/to/directory")

# Check if file or directory exists

os.path.exists("file or directory")

os.path.isfile("file")

os.path.isdir("directory")

# Working directory and absolute path to files

os.getcwd()

os.path.abspath("file")