1.\" Copyright (c) 1997 2.\" Michael Smith 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd May 22, 2012 28.Dt MINIGZIP 1 29.Os 30.Sh NAME 31.Nm minigzip 32.Nd minimal implementation of the 'gzip' compression tool 33.Sh SYNOPSIS 34.Nm 35.Op Fl cd 36.Op Ar 37.Sh DESCRIPTION 38The 39.Nm 40utility is a minimal implementation of the 41.Xr gzip 1 42utility. 43It supports 44compression and decompression of individual files, as well as 45streaming compression and decompression via standard input and 46output. 47.Pp 48The default operation is compression, decompression can be 49selected by supplying the 50.Fl d 51flag on the command line. 52.Pp 53If any 54.Ar file 55arguments are supplied, the operation is performed on each file 56separately. 57Compression replaces the original file with one having a 58.Pa .gz 59suffix. 60Decompression will remove a 61.Pa .gz 62suffix if one is present. 63.Pp 64If no 65.Ar file 66arguments are supplied, 67.Nm 68reads from standard input and writes the results of the operation 69to standard output. 70.Pp 71If the 72.Fl c 73option is specified, 74.Nm 75writes the results to standard output and keep the original files 76unchanged. 77.Sh SEE ALSO 78.Xr gzip 1 79.Sh AUTHORS 80The 81.Nm 82utility was written by 83.An Jean-loup Gailly . 84