My question is about copying files off from an external disk to another with using local disk as staging.
I have my files on a USB disk (total size: 800 GB), which I need to copy to another USB disk (1 TB capacity.) While doing this, I have to use my local disk as staging - to say, I have to copy files first to local disk, and then to the other disk. The reason is that in the first USB, the files are encrypted. Copying files to the local disk decrypts the files.
I have to keep permissions and directory hierarchy as the files are backup files.
To make things more complicated, there is not enough space in my local disk - I can only use 50 GB of staging space.
I am very comfortable with Windows command line or Linux (Windows Subsystem for Linux.)
I prefer to solve this with commands or free applications. I am not looking for paid applications at this stage.
Thanks much for the help!