1.\" $NetBSD: znew.1,v 1.2 2003/12/28 12:43:43 wiz Exp $ 2.\" $OpenBSD: znew.1,v 1.1 2003/08/02 20:52:50 otto Exp $ 3.\" $DragonFly: src/usr.bin/gzip/znew.1,v 1.1 2004/10/26 11:19:31 joerg Exp $ 4.\" 5.\" Copyright (c) 2003 Otto Moerbeek <otto@drijf.net> 6.\" 7.\" Permission to use, copy, modify, and distribute this software for any 8.\" purpose with or without fee is hereby granted, provided that the above 9.\" copyright notice and this permission notice appear in all copies. 10.\" 11.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18.\" 19.Dd August 1, 2003 20.Dt ZNEW 1 21.Os 22.Sh NAME 23.Nm znew 24.Nd convert compressed files to gzipped files 25.Sh SYNOPSIS 26.Nm 27.Op Fl ftv9K 28.Ar 29.Sh DESCRIPTION 30The 31.Nm 32utility uncompresses files compressed by 33.Xr compress 1 34and recompresses them with 35.Xr gzip 1 . 36.Pp 37The options are as follows: 38.Bl -tag -width Ds 39.It Fl f 40Overwrite existing 41.Sq .gz 42files. 43Unless this option is specified, 44.Nm 45refuses to overwrite existing files. 46.It Fl t 47Test integrity of the gzipped file before deleting the original file. 48If the integrity check fails, the original 49.Sq .Z 50file is not removed. 51.It Fl v 52Print a report specifying the achieved compression ratios. 53.It Fl 9 54Use the -9 mode of 55.Xr gzip 1 , 56achieving better compression at the cost of slower execution. 57.It Fl K 58Keep the original 59.Sq .Z 60file if it uses less disk blocks than the gzipped one. 61A disk block is 1024 bytes. 62.El 63.Sh SEE ALSO 64.Xr gzip 1 65.Sh CAVEATS 66The 67.Nm 68utility tries to maintain the file mode of the original file. 69If the original file is not writable, it is not able to do that and 70.Nm 71will print a warning. 72