/usr.bin/gzip/znew.1

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  1. .\"	$NetBSD: znew.1,v 1.2 2003/12/28 12:43:43 wiz Exp $
    2. 

  2. .\"	$OpenBSD: znew.1,v 1.1 2003/08/02 20:52:50 otto Exp $
    3. 

  3. .\"
    4. 

  4. .\" Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
    5. 

  5. .\"
    6. 

  6. .\" Permission to use, copy, modify, and distribute this software for any
    7. 

  7. .\" purpose with or without fee is hereby granted, provided that the above
    8. 

  8. .\" copyright notice and this permission notice appear in all copies.
    9. 

  9. .\"
    10. 

  10. .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    11. 

  11. .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
    12. 

  12. .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    13. 

  13. .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    14. 

  14. .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    15. 

  15. .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    16. 

  16. .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    17. 

  17. .\"
    18. 

  18. .\" $FreeBSD$
    19. 

  19. .Dd January 26, 2007
    20. 

  20. .Dt ZNEW 1
    21. 

  21. .Os
    22. 

  22. .Sh NAME
    23. 

  23. .Nm znew
    24. 

  24. .Nd convert compressed files to gzipped files
    25. 

  25. .Sh SYNOPSIS
    26. 

  26. .Nm
    27. 

  27. .Op Fl ftv9K
    28. 

  28. .Ar
    29. 

  29. .Sh DESCRIPTION
    30. 

  30. The
    31. 

  31. .Nm
    32. 

  32. utility uncompresses files compressed by
    33. 

  33. .Xr compress 1
    34. 

  34. and recompresses them with
    35. 

  35. .Xr gzip 1 .
    36. 

  36. .Pp
    37. 

  37. The options are as follows:
    38. 

  38. .Bl -tag -width Ds
    39. 

  39. .It Fl f
    40. 

  40. Overwrite existing
    41. 

  41. .Sq .gz
    42. 

  42. files.
    43. 

  43. Unless this option is specified,
    44. 

  44. .Nm
    45. 

  45. refuses to overwrite existing files.
    46. 

  46. .It Fl t
    47. 

  47. Test integrity of the gzipped file before deleting the original file.
    48. 

  48. If the integrity check fails, the original
    49. 

  49. .Sq .Z
    50. 

  50. file is not removed.
    51. 

  51. .It Fl v
    52. 

  52. Print a report specifying the achieved compression ratios.
    53. 

  53. .It Fl 9
    54. 

  54. Use the -9 mode of
    55. 

  55. .Xr gzip 1 ,
    56. 

  56. achieving better compression at the cost of slower execution.
    57. 

  57. .It Fl K
    58. 

  58. Keep the original
    59. 

  59. .Sq .Z
    60. 

  60. file if it uses less disk blocks than the gzipped one.
    61. 

  61. A disk block is 1024 bytes.
    62. 

  62. .El
    63. 

  63. .Sh SEE ALSO
    64. 

  64. .Xr gzip 1
    65. 

  65. .Sh CAVEATS
    66. 

  66. The
    67. 

  67. .Nm
    68. 

  68. utility tries to maintain the file mode of the original file.
    69. 

  69. If the original file is not writable, it is not able to do that and
    70. 

  70. .Nm
    71. 

  71. will print a warning.
    72.