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Diffstat (limited to 'doc/lzip.info')
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1 files changed, 29 insertions, 23 deletions
diff --git a/doc/lzip.info b/doc/lzip.info index 5e2e530..7914b91 100644 --- a/doc/lzip.info +++ b/doc/lzip.info @@ -11,7 +11,7 @@ File: lzip.info, Node: Top, Next: Introduction, Up: (dir) Lzip Manual *********** -This manual is for Lzip (version 1.9, 17 January 2010). +This manual is for Lzip (version 1.10, 5 April 2010). * Menu: @@ -68,11 +68,11 @@ multivolume compressed tar archives. The amount of memory required for compression is about 5 MiB plus 1 or 2 times the dictionary size limit (1 if input file size is less than dictionary size limit, else 2) plus 8 times the dictionary size really -used. For decompression is a little more than the dictionary size really -used. Lzip will automatically use the smallest possible dictionary size -without exceeding the given limit. It is important to appreciate that -the decompression memory requirement is affected at compression time by -the choice of dictionary size limit. +used. For decompression it is a little more than the dictionary size +really used. Lzip will automatically use the smallest possible +dictionary size without exceeding the given limit. It is important to +appreciate that the decompression memory requirement is affected at +compression time by the choice of dictionary size limit. When decompressing, lzip attempts to guess the name for the decompressed file from that of the compressed file as follows: @@ -254,15 +254,15 @@ The format for running lzip is: slower than `-1'. These options have no effect when decompressing. Level Dictionary size Match length limit - -1 1MiB 10 bytes - -2 1MiB 12 bytes - -3 1MiB 17 bytes - -4 2MiB 26 bytes - -5 4MiB 44 bytes - -6 8MiB 80 bytes - -7 16MiB 108 bytes - -8 16MiB 163 bytes - -9 32MiB 273 bytes + -1 1 MiB 10 bytes + -2 1.5 MiB 12 bytes + -3 2 MiB 17 bytes + -4 3 MiB 26 bytes + -5 4 MiB 44 bytes + -6 8 MiB 80 bytes + -7 16 MiB 108 bytes + -8 24 MiB 163 bytes + -9 32 MiB 273 bytes `--fast' `--best' @@ -419,6 +419,12 @@ writes each member in its own .lz file. You can then use `lzip -t' to test the integrity of the resulting files, and decompress those which are undamaged. + Data from damaged members can be partially recovered writing it to +stdout as shown in the following example (the resulting file may contain +garbage data at the end): + + lzip -cd rec00001file.lz > rec00001file + Lziprecover takes a single argument, the name of the damaged file, and writes a number of files `rec00001file.lz', `rec00002file.lz', etc, containing the extracted members. The output filenames are designed so @@ -466,13 +472,13 @@ Concept Index Tag Table: Node: Top224 -Node: Introduction899 -Node: Algorithm4206 -Node: Invoking Lzip6432 -Node: File Format10779 -Node: Examples12733 -Node: Lziprecover14571 -Node: Problems15270 -Node: Concept Index15795 +Node: Introduction897 +Node: Algorithm4207 +Node: Invoking Lzip6433 +Node: File Format10780 +Node: Examples12734 +Node: Lziprecover14572 +Node: Problems15487 +Node: Concept Index16012 End Tag Table |