Question

For example, if I create a dustbin folder and it has ~/dustbin/File01 already in it, how would I copy a new file into the folder with the same name?

E.g.:

cp ~/test/File01 ~/dustbin/File01

But add perhaps (Copy) to the end of it

Answer 1

Unix filesystems don’t allow two files with the same name in the same folder (for reference, VMS did allow that).

You can use cat with append:

cat ~/test/File01 >> ~/dustbin/File01

This creates the file when it doesn’t exist or appends to an existing file.

Also the cp command offers options to make backups so it doesn’t overwrite existing files. See the --backup option for that.