I want to backup thousands of files on my external hard disk. They are plain text files. I update some of them on a regular basis.
Now, if I copy them form my PC to hard disk, I have two options:
- Copy whole directories with changed and unchanged files giving the directory a new name like:
backup some_date backup other_date backup new_date
- Keep copying all files to the same directory and replace old files with their newer versions.
Method 1 consumes a lot of space and as the unchanged files would be backed up again and again. Method 2 save a lot of space but I lose the old version of changed files.
Is their a way to get the best of both these methods when copying to an external hard disk?