<human>:  capture file name with suffix.
<bot>: Here is a Python program to capture file name with suffix

import os

def get_file_name_with_suffix(file_name, suffix):
  """
  Returns file name with suffix

  :param file_name:
  :param suffix:
  """
  return file_name + suffix

# Enter the file name
file_name = "test.txt"

# Enter the suffix
suffix = ".txt"

# Calling the function
file_name_with_suffix = get_file_name_with_suffix(file_name, suffix)

# Printing the file name with suffix
print(file_name_with_suffix)

#Example Output
# test.txt.txt

#Remember to inspect code for bugs.