<human>:  Give me a Python function to linux copy a script to a file at the time of init.
<bot>: Here is a Python function to copy a script to a file at the time of init

import os

def copy_pid_to_file(pid, file_name):
  """Copy pid of script to a file at time of init.

  :param int pid:
  :param str file_name:
  :rtype: None
  :return:
  """
  with open(file_name, 'w') as f:
    f.write(str(pid))

# Enter the pid
pid = 12345

# Enter the file name
file_name = "/home/rosey/test.pid"

# Calling the function
print((copy_pid_to_file(pid, file_name)))

#Example Output
# None

#Remember to inspect code for bugs.