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72 lines
1.9 KiB
Groff
72 lines
1.9 KiB
Groff
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.\" $NetBSD: znew.1,v 1.2 2003/12/28 12:43:43 wiz Exp $
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.\" $OpenBSD: znew.1,v 1.1 2003/08/02 20:52:50 otto Exp $
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.\"
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.\" Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.\" $FreeBSD$
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.Dd January 26, 2007
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.Dt ZNEW 1
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.Os
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.Sh NAME
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.Nm znew
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.Nd convert compressed files to gzipped files
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.Sh SYNOPSIS
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.Nm
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.Op Fl ftv9K
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.Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility uncompresses files compressed by
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.Xr compress 1
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and recompresses them with
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.Xr gzip 1 .
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl f
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Overwrite existing
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.Sq .gz
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files.
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Unless this option is specified,
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.Nm
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refuses to overwrite existing files.
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.It Fl t
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Test integrity of the gzipped file before deleting the original file.
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If the integrity check fails, the original
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.Sq .Z
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file is not removed.
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.It Fl v
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Print a report specifying the achieved compression ratios.
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.It Fl 9
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Use the -9 mode of
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.Xr gzip 1 ,
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achieving better compression at the cost of slower execution.
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.It Fl K
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Keep the original
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.Sq .Z
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file if it uses less disk blocks than the gzipped one.
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A disk block is 1024 bytes.
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.El
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.Sh SEE ALSO
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.Xr gzip 1
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.Sh CAVEATS
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The
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.Nm
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utility tries to maintain the file mode of the original file.
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If the original file is not writable, it is not able to do that and
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.Nm
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will print a warning.
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