Script is not well tested - use at your own risk.
Currently working on Ubuntu 20, I haven't checked other operating systems.

Script to back-up files.

The script takes two paths: path to directory with files to back-up and path to directory where files will be copied. Then, after user's consent, script performs back-up.

If script is run two or more times on the same directories, it will create directories for older versions of previously saved files.
For example:
/home/user/file.txt is saved in /home/user/backup/file.txt
Script runs again, current /home/user/file.txt is again saved in /home/user/backup/file.txt but the previous version of /home/user/backup/file.txt is moved to /home/user/backup/_old_/_old_file_txt/2020-09-07_12:00:00_file.txt (the datetime is equal to current datetime while performing back-up).

Python 3 is needed to run this script.

1. Enter main directory of this repository.
2. Open terminal.
3. Run script:

python3 main.py path_to_dir_with_files path_to_dir_where_files_will_be_copied

4. Follow instructions in terminal.