I didn't read enough the manual and run the following command
$ zstd -r folder -o output.zst
The following command gave me back a single file called output
$ unzstd output.zst
The output file has all the contents of the files under the folder concatenated.
Is there some tools or programs to un-concatenate the single file into multiple original files?
This is the only backup file I have and I need the backup.
EDIT: what I really should have run (according to this thread) is
# for tar version 1.31 and above $ tar --zstd -cf output.tar.zst folder # for tar version < 1.31 $ tar --use-compress-program zstd -cf output.tar.zst folder