7z
par2cmdline
7z | par2cmdline | |
---|---|---|
5 | 28 | |
487 | 677 | |
- | 2.1% | |
2.4 | 0.0 | |
4 months ago | about 2 months ago | |
C++ | C++ | |
GNU Lesser General Public License v3.0 only | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
7z
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7-zip 22.00 – APFS, Posix TAR, high precision timestamps
Looking back at this version history [1], there was perviously a gap of 3.5 years between releases (2011-2014). Skimming through the discussion forums, the 2.5yr gap between 19.00 and 21.07 was filled with a number of alpha and beta releases, eg 20.02 [2]. Version numbering seems to follow a consistent yy.## format since 2015.
[1] https://sourceforge.net/projects/sevenzip/files/7-Zip/
[2] https://sourceforge.net/p/sevenzip/discussion/45797/thread/9...
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And it's not like they're 60, they're twenty! I thought it was more known
Also, unlike WinRAR, 7zip is open-source. Code mirror here: https://github.com/kornelski/7z
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7zip > winRAR change my mind
It's also open source.
- 7-zip official Linux version
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How safe is 7Zip encryption?
AES is only as good as the KDF protecting the key. Looking at the github mirror of its code (updated march 2019), it seems to be using PBKDF2-SHA1 with 1,000 iterations. That's actually really bad because SHA1 is weak, and 1,000 iterations is very low.
par2cmdline
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Best archival medium for 3-10 gig video files?
An alternative is including PAR2 files.
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Understanding CD-R and CD-RW (2003) [pdf]
Not only that but if you budget for an expected error rate of let's say 10% you can use par2 to create additional files that add that redundancy to your archives.
https://github.com/Parchive/par2cmdline
- Is this a viable strat to backup while still having some live access to relevant data?
- Par2cmdline is a PAR 2.0 compatible file verification and repair tool
- Tips for Long Term Data storage (20+ years).
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Side-by-side: WinRAR, PeaZip, 7-Zip, WinZip
That's the same reason I do archive files. For parity I personally use (https://github.com/Parchive/par2cmdline) which does create extra files, so I can see how WinRAR would have something to add there.
- Come aggiungere parità a un gruppo di DVD?
- Adding redundancy records to data
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FSArchiver – Filesystem Archiver for Linux
Here's the first example I could find.
https://pthree.org/2014/04/01/protect-against-bit-rot-with-p...
Basically, you take a normal TAR file and creates external parity files that can be used to recover data in the case of bitrot. Something like this would have been great to have on a few data files I had to retrieve from tape that ended up with a bit flip somewhere in the network > disk > tape > disk process.
However, it doesn't look like the program is maintained anymore...
http://parchive.sourceforge.net/
> DISCLAIMER: This project web space is not actively mantained and is presented here for archive purposes. However some project members still montior the project mailings lists if you have questions. (sic)
The last release was in 2004 (Wikipedia says it was active until 2015, but I don't see that).
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Archiver
Check out par2. I don't know personally of an open source one except I used QuickPar for Windows in the distant past. There's also multipar: https://github.com/Yutaka-Sawada/MultiPar and parchive: https://github.com/Parchive/par2cmdline
What are some alternatives?
NanaZip - The 7-Zip derivative intended for the modern Windows experience
par2deep - Produce, verify and repair par2 files recursively.
PeaZip - Free Zip / Unzip software and Rar file extractor. Cross-platform file and archive manager. Features volume spanning, compression, authenticated encryption. Supports 7Z, 7-Zip sfx, ACE, ARJ, Brotli, BZ2, CAB, CHM, CPIO, DEB, GZ, ISO, JAR, LHA/LZH, NSIS, OOo, PAQ/LPAQ, PEA, QUAD, RAR, RPM, split, TAR, Z, ZIP, ZIPX, Zstandard.
dwarfs - A fast high compression read-only file system for Linux, Windows and macOS
7-Zip-zstd - 7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard
libarchive - Multi-format archive and compression library
fast-lzma2 - Fast LZMA2 Library
p7zip - A new p7zip fork with additional codecs and improvements (forked from https://sourceforge.net/projects/sevenzip/ AND https://sourceforge.net/projects/p7zip/).
Squirrel - An installation and update framework for Windows desktop apps
7zip.html - Browse 7z archives online in the web-browsers
chirppy - Play chirp.io chirps with Python