Binary package “parchive” in ubuntu noble
Use PAR files to reconstruct missing parts of multi-part archives
This utility applies the data-recovery capability concepts of RAID-like
systems to the posting and downloading of multi-part archives on USENET by
providing the ability to create and use redundant recovery records. It
supports the 'Reed-Solomon Code' implementation that allows for recovery of
any 'X' volumes for 'X' parity volumes present. It is popularly used on
USENET postings, but is not limited to this use.
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The Debian parchive package supports "legacy" version 1.0 PAR files.
The Debian par2 package supports version 2.0 PAR files.