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A deep dive into the tar format (depot.dev)

submitted 8 hours ago by TechSquidTV to c/linux

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[–] [email protected] 4 points 7 hours ago (1 children)

I have never heard of pax.

[–] [email protected] 7 points 6 hours ago* (last edited 6 hours ago)

I'd say pixz is considerably more interesting to improve tar.

https://github.com/vasi/pixz

Used as a compressor with tar, it adds:

Parallel compression/decompression, increasingly important with many-core processors.
Indexed access. Tarballs, unlike, say, zip or 7zip, don't normally support jumping right to the point in an archive where a file lives.

It's LZMA-based, like xz, lzip, or 7zip. Good-but-slow compression, faster decompression than bzip.