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to-lzma(1)                                                          to-lzma(1)




NAME

       to-lzma  -  converts  .Z, .lzo, .zip, .rar, .gz, and .bz2 files to lzma
       format (DEPRECATED)


SYNOPSIS

       to-lzma    [-(IPv)4]    [-(IPv)6]    [-d(elete_original)]     [-h(elp)]
       [-k(eep_smallest)]  [-m(ax_compress)]  [-n(o_overwrite)] [-p num_cores]
       [-t(imestamp_retain)] file/URL...


DESCRIPTION

       to-lzma recompresses files compressed with  the  compress,  lzop,  zip,
       gzip,  bzip2,  and/or  zstd utilities into lzma format.  The newly com-
       pressed files will usually have a .lzma or  a  .tlz  extension.   If  a
       specified  file is actually a URL, it will be downloaded using wget and
       then recompressed.


OPTIONS

       -4     Prefer IPv4 when downloading a URL.

       -6     Prefer IPv6 when downloading a URL.

       -d     After each file is compressed, delete the original.

       -h     Print help and quit.

       -k     Once a file is successfully recompressed, delete the  larger  of
              the  original  file  or the new one.  This option maximizes disk
              space savings and is incompatible with the -d option.

       -m     Compress more, but at the expense of increased CPU time and mem-
              ory usage.

       -n     Do  not  overwrite  the  target .lzma or .tlz file if it already
              exists.

       -p num_cores
              Use the multi-threaded -T option of  lzma  to  utilize  multiple
              cores  during  compression.   Note  that  the output file, while
              being fully compatible with unthreaded lzma, will  generally  be
              slightly larger.  Specifying a num_cores value of zero will uti-
              lize all available cores.  This option  has  no  effect  if  the
              alternate lzma_alone compression engine is used.

       -t     Make the timestamp of new files match those of the old files.


NOTES

       Note  that  the .lzma file format is a raw LZMA compressed data stream.
       It has been deprecated in favor of the .lz and .xz  files  produced  by
       lzip  and xz, respectively.  These newer file formats feature identify-
       ing magic bytes and CRC-based integrity checks, and using one  of  them
       instead  of .lzma is strongly recommended.  The author prefers lzip, as
       it compresses slightly better and has a simpler and  arguably  superior
       file format.


SEE ALSO

       lzma(1),   lzma_alone(1),   compress(1),   zip(1),   gzip(1),  lzop(1),
       bzip2(1),  zstd(1),  rar2tarcat(1),  zip2tarcat(1),   lzip(1),   xz(1),
       wget(1)


COPYRIGHT

       Copyright  (C) 2006-2020 by Brian Lindholm.  This program is free soft-
       ware; you can use it, redistribute it, and/or modify it under the terms
       of  the  GNU  General  Public License as published by the Free Software
       Foundation; either version 3, or (at your option) any later version.

       This program is distributed in the hope that it  will  be  useful,  but
       WITHOUT  ANY  WARRANTY;  without  even  the  implied  warranty  of MER-
       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  General
       Public License for more details.



littleutils                       2020 Oct 19                       to-lzma(1)

littleutils 1.2.3 - Generated Tue Dec 1 07:58:56 CST 2020
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