ZPAQ
Incremental Journaling Backup Utility and Archiver zpaq is a free and open source incremental, journaling command-line archiver for Windows, Linux and Mac OS/X. Incremental means that when you back up your hard drive, for example: zpaq add e:\backup.zpaq c:\* then only those files whose last-modified date or size has changed since the previous backup are added. For 100 GB of files, this typically
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btar: Documentation
btar - Block TAR Tar-compatible archiver which allows arbitrary compression and ciphering, redundancy, differential backup, indexed extraction, multicore compression, input and output serialisation, and tolerance to partial archive errors. Features: Single file backup Optional indexed access Serialisable listing, backup and restore Backups (btar files) can be restored with usual unix tools (sh and
Binary diff
bsdiff and bspatch are tools for building and applying patches to binary files. By using suffix sorting (specifically, Larsson and Sadakane's qsufsort) and taking advantage of how executable files change, bsdiff routinely produces binary patches 50-80% smaller than those produced by Xdelta, and 15% smaller than those produced by .RTPatch (a $2750/seat commercial patch tool). These programs were or
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Advance Projects
SZIP Compression in HDF Products
GitHub - moinakg/pcompress: A Parallelized Data Deduplication and Compression utility
T2 package - trunk - grzip - A high-performance and fast general purpose file compressor
Lzip - LZMA lossless data compressor
GitHub - ckolivas/lrzip: Long Range Zip
UglifyJS — a JavaScript parser/compressor/beautifier