In a typical command-line string, the -dd option is used alongside other precompression methods: xtool precomp -mzlib -mprecomp -dd input_folder output_file : Directs Xtool to process zlib-compressed data.
When enabled, xtool will analyze the input stream or file structure before processing (archiving, copying, or backing up). Instead of blindly writing every block of data to the destination, it checks if that specific block has already been seen. If it has, xtool writes a small reference pointer to the existing block rather than a full second copy. xtool -dd deduplication option
Deduplication is the process of finding identical blocks of data and replacing them with a single copy and a reference. In the context of Xtool: In a typical command-line string, the -dd option
