Rename and replace remote files using NcFTP in the shell

Rename remote files with NcFTP

#!/bin/bash

echo 'open -u ${USER} -p ${PASS} ${HOST}
cd ${BASE_DIR}
ls
rm -rf ${BACKUP_FILE}
rename ${CURRENT_FILE_NAME} ${BACKUP_FILE}
rename ${NEW_FILE_NAME} ${CURRENT_FILE_NAME}
ls
quit'|ncftp

When switching files, I wrote it with the intention of hitting it from Jenkins, but in the end I rejected it and changed to python below.

Rename remote files in Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-

print 'python >>>'

import sys, os, datetime, re
from ftplib import FTP

ftp_host = 'hostname'
ftp_user = 'username'
ftp_pass = 'password'
ftp_base_dir = 'Directory with files to rename'
ftp_from_dir = 'Newly published file'
ftp_to_dir = 'Currently open files'
ftp_backup_prefix = '_'

def main(arg_user='', arg_pass='', *args):

	if arg_user == '' or arg_pass == '':
		print '  Rename directory failed'
		print '    Error: User or Password is not input.'
		return

	ftp_user = arg_user
	ftp_pass = arg_pass
	
	dt = str(datetime.datetime.utcnow())
	dt = dt.replace(':', '-')
	dt = dt.replace(' ', '_')
	dt = re.sub(r'\.\d+', '', dt)

	print '  Rename directory start >>> ' + dt

	try:
		ftp = FTP(ftp_host)
		ftp.login(ftp_user,ftp_pass)
		ftp.cwd(ftp_base_dir)
		file_list = ftp.nlst()
		if ftp_from_dir in file_list:
			ftp.rename(ftp_to_dir, ftp_backup_prefix+dt)
			ftp.rename(ftp_from_dir,ftp_to_dir)
		else:
			print '  Rename directory failed'
			print '    Error: NotFound New Directory'
		ftp.close()
		print '  Rename directory finished'

	except Exception as e:
		print '  Rename directory failed'
		print '    Error: ' + e.message


if __name__ == '__main__':
	sys.path.append(os.path.dirname(__file__))
	sys_args = sys.argv
	args = sys_args[1:] if len(sys_args) > 1 else []
	main(*args)

Run python above

python file_rename.py UserName Password

Backup should be done at the time of upload I feel that it is okay to delete old files.