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@@ -3,26 +3,16 @@ Description Lunzip is a decompressor for lzip files. It is written in C and its small size makes it well suited for embedded devices or software installers that need to decompress files but do not need compression -capabilities. +capabilities. Lunzip is fully compatible with lzip-1.4 or newer. + +The lzip file format is designed for long-term data archiving. It is +clean, provides very safe 4 factor integrity checking, and is backed by +the recovery capabilities of lziprecover. Lunzip uses the same well-defined exit status values used by lzip and bzip2, which makes it safer when used in pipes or scripts than decompressors returning ambiguous warning values, like gunzip. -The 4 factor integrity checking of the lzip format guarantees that the -decompressed version of the data is identical to the original. This -guards against corruption of the compressed data, and against undetected -bugs in lunzip (hopefully very unlikely). The chances of data corruption -going undetected are microscopic. Be aware, though, that the check -occurs upon decompression, so it can only tell you that something is -wrong. It can't help you recover the original uncompressed data. - -If you ever need to recover data from a damaged lzip file, try the -lziprecover program. Lziprecover makes lzip files resistant to bit-flip, -one of the most common forms of data corruption, and its recovery -capabilities contribute to make of the lzip format one of the best -options for long-term data archiving. - Lunzip replaces every file given in the command line with a decompressed version of itself. Each decompressed file has the same modification date, permissions, and, when possible, ownership as the corresponding |