mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-27 11:55:06 +00:00
9a9ea25f4a
NetBSD version is a feature-to-feature re-implementation of GNU gzip using the freely-redistributable zlib and this version is expected to be mostly bug-to-bug compatible with the GNU implementation. - Because this is a piece of mature code and we want to make changes so it is added directly rather than importing to src/contrib. - Connect newly added code to src/usr.bin/ and rescue/rescue build. - Disconnect the GNU gzip code from build for now, they will be eventually removed completely. - Provide two new src.conf(5) knobs, WITHOUT_BZIP2_SUPPORT and WITHOUT_BZIP2. Tested by: kris (full exp-7 pointyhat build) Approved by: core (importing a 4-clause BSD licensed file) Approved by: re (adding new utility during -HEAD code slush)
72 lines
1.9 KiB
Groff
72 lines
1.9 KiB
Groff
.\" $NetBSD: znew.1,v 1.2 2003/12/28 12:43:43 wiz Exp $
|
|
.\" $OpenBSD: znew.1,v 1.1 2003/08/02 20:52:50 otto Exp $
|
|
.\"
|
|
.\" Copyright (c) 2003 Otto Moerbeek <otto@drijf.net>
|
|
.\"
|
|
.\" Permission to use, copy, modify, and distribute this software for any
|
|
.\" purpose with or without fee is hereby granted, provided that the above
|
|
.\" copyright notice and this permission notice appear in all copies.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.Dd January 26, 2007
|
|
.Dt ZNEW 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm znew
|
|
.Nd convert compressed files to gzipped files
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl ftv9K
|
|
.Ar
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility uncompresses files compressed by
|
|
.Xr compress 1
|
|
and recompresses them with
|
|
.Xr gzip 1 .
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width Ds
|
|
.It Fl f
|
|
Overwrite existing
|
|
.Sq .gz
|
|
files.
|
|
Unless this option is specified,
|
|
.Nm
|
|
refuses to overwrite existing files.
|
|
.It Fl t
|
|
Test integrity of the gzipped file before deleting the original file.
|
|
If the integrity check fails, the original
|
|
.Sq .Z
|
|
file is not removed.
|
|
.It Fl v
|
|
Print a report specifying the achieved compression ratios.
|
|
.It Fl 9
|
|
Use the -9 mode of
|
|
.Xr gzip 1 ,
|
|
achieving better compression at the cost of slower execution.
|
|
.It Fl K
|
|
Keep the original
|
|
.Sq .Z
|
|
file if it uses less disk blocks than the gzipped one.
|
|
A disk block is 1024 bytes.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr gzip 1
|
|
.Sh CAVEATS
|
|
The
|
|
.Nm
|
|
utility tries to maintain the file mode of the original file.
|
|
If the original file is not writable, it is not able to do that and
|
|
.Nm
|
|
will print a warning.
|