Reference

bzip2recover(1) on Linux

The text db2100c7a64c, as Debian 3.1 (Sarge), Debian 3.0 (Woody) shipped it.

a block-sorting file compressor, v1.0.2 bzcat - decompresses files to stdout bzip2recover - recovers data from damaged bzip2 files

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bzip2recover(1) on Linux now