Piece of code in Python that helps in bulk renaming of files.

NameChanger.py

import os
import random
import sys

baseName = ' '.join(sys.argv[1:])
print (baseName)

with open('postFixList.txt') as f:
    lines = f.read().splitlines()
print(lines)

cwd = os.getcwd()
folder = "FileList"
folderPath = os.path.join(cwd,folder)
print(folderPath)

for eachFile in os.listdir(folderPath):
    filename = os.path.splitext(eachFile)[0]
    print (filename)
    extension = os.path.splitext(eachFile)[1]
    print (extension)
    updateName = baseName + " " +random.choice(lines) + extension
    print(updateName)
    os.rename(os.path.join(folderPath, eachFile), os.path.join(folderPath, updateName))