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Annotation of src/usr.bin/compress/znew.1, Revision 1.4

1.4     ! jmc         1: .\"    $OpenBSD: znew.1,v 1.3 2007/01/24 10:53:43 jmc Exp $
1.1       otto        2: .\"
                      3: .\" Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
                      4: .\"
                      5: .\" Permission to use, copy, modify, and distribute this software for any
                      6: .\" purpose with or without fee is hereby granted, provided that the above
                      7: .\" copyright notice and this permission notice appear in all copies.
                      8: .\"
                      9: .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10: .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11: .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12: .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13: .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14: .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15: .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     16: .\"
1.4     ! jmc        17: .Dd $Mdocdate$
1.1       otto       18: .Dt ZNEW 1
                     19: .Os
                     20: .Sh NAME
                     21: .Nm znew
                     22: .Nd convert compressed files to gzipped files
                     23: .Sh SYNOPSIS
                     24: .Nm
1.2       jmc        25: .Op Fl 9fKtv
1.1       otto       26: .Ar
                     27: .Sh DESCRIPTION
                     28: The
                     29: .Nm
                     30: utility uncompresses files compressed by
                     31: .Xr compress 1
                     32: and recompresses them with
                     33: .Xr gzip 1 .
                     34: .Pp
                     35: The options are as follows:
                     36: .Bl -tag -width Ds
1.2       jmc        37: .It Fl 9
                     38: Use the -9 mode of
                     39: .Xr gzip 1 ,
                     40: achieving better compression at the cost of slower execution.
1.1       otto       41: .It Fl f
                     42: Overwrite existing
                     43: .Sq .gz
                     44: files.
                     45: Unless this option is specified,
                     46: .Nm
                     47: refuses to overwrite existing files.
1.2       jmc        48: .It Fl K
                     49: Keep the original
                     50: .Sq .Z
                     51: file if it uses less disk blocks than the gzipped one.
                     52: A disk block is 1024 bytes.
1.1       otto       53: .It Fl t
                     54: Test integrity of the gzipped file before deleting the original file.
                     55: If the integrity check fails, the original
                     56: .Sq .Z
                     57: file is not removed.
                     58: .It Fl v
                     59: Print a report specifying the achieved compression ratios.
                     60: .El
                     61: .Sh SEE ALSO
1.3       jmc        62: .Xr compress 1 ,
1.1       otto       63: .Xr gzip 1
                     64: .Sh CAVEATS
                     65: The
                     66: .Nm
                     67: utility tries to maintain the file mode of the original file.
1.2       jmc        68: If the original file is not writable, it will be unable to do so and
1.1       otto       69: .Nm
                     70: will print a warning.