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Diffstat (limited to 'doc/lziprecover.texinfo')
| -rw-r--r-- | doc/lziprecover.texinfo | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/doc/lziprecover.texinfo b/doc/lziprecover.texinfo index 2447c14..9086787 100644 --- a/doc/lziprecover.texinfo +++ b/doc/lziprecover.texinfo @@ -5,8 +5,8 @@ @finalout @c %**end of header -@set UPDATED 12 November 2011 -@set VERSION 1.13-rc1 +@set UPDATED 20 November 2011 +@set VERSION 1.13-rc2 @dircategory Data Compression @direntry @@ -122,6 +122,20 @@ data as possible when decompressing a corrupt file. @itemx --decompress Decompress. +@item -D @var{range} +@itemx --range-decompress=@var{range} +Decompress only a range of bytes starting at decompressed byte position +@samp{@var{begin}} and up to byte position @w{@samp{@var{end} - 1}}. +Three formats of @var{range} are recognized, @samp{@var{begin}}, +@samp{@var{begin}-@var{end}}, and @samp{@var{begin},@var{size}}. If only +@var{begin} is specified, @var{end} is taken as the end of the file. The +produced bytes are sent to standard output unless the @samp{--output} +option is used. In order to guarantee the correctness of the data +produced, all members containing any part of the desired data are +decompressed and their integrity is verified. This operation is more +efficient in multimember files because it only decompresses the members +containing the desired data. + @item -f @itemx --force Force overwrite of output files. @@ -130,6 +144,11 @@ Force overwrite of output files. @itemx --keep Keep (don't delete) input files during decompression. +@item -l +@itemx --list +Print total file sizes and ratios. The values produced are correct even +for multimember files. + @item -m @itemx --merge Try to produce a correct file merging the good parts of two or more @@ -195,6 +214,24 @@ trailing garbage (if any). @end table +@sp 1 +Numbers given as arguments to options may be followed by a multiplier +and an optional @samp{B} for "byte". + +Table of SI and binary prefixes (unit multipliers): + +@multitable {Prefix} {kilobyte (10^3 = 1000)} {|} {Prefix} {kibibyte (2^10 = 1024)} +@item Prefix @tab Value @tab | @tab Prefix @tab Value +@item k @tab kilobyte (10^3 = 1000) @tab | @tab Ki @tab kibibyte (2^10 = 1024) +@item M @tab megabyte (10^6) @tab | @tab Mi @tab mebibyte (2^20) +@item G @tab gigabyte (10^9) @tab | @tab Gi @tab gibibyte (2^30) +@item T @tab terabyte (10^12) @tab | @tab Ti @tab tebibyte (2^40) +@item P @tab petabyte (10^15) @tab | @tab Pi @tab pebibyte (2^50) +@item E @tab exabyte (10^18) @tab | @tab Ei @tab exbibyte (2^60) +@item Z @tab zettabyte (10^21) @tab | @tab Zi @tab zebibyte (2^70) +@item Y @tab yottabyte (10^24) @tab | @tab Yi @tab yobibyte (2^80) +@end multitable + @node File Format @chapter File Format |