2 .\" Copyright (c) 2007-2008 Dag-Erling Coïdan Smørgrav
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
14 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 .Nd extract files from a ZIP archive
42 The following options are available:
45 When extracting a text file, convert DOS-style line endings to
46 Unix-style line endings.
48 Match file names case-insensitively.
50 Extract to stdout/screen.
51 When extracting files from the zipfile, they are written to stdout.
54 but doesn't suppress normal output.
56 Extract files into the specified directory rather than the current
60 Extract only files from the zipfile if a file with the same name
61 already exists on disk and is older than the former.
62 Otherwise, the file is silently skipped.
64 Ignore directories stored in the zipfile; instead, extract all files
65 directly into the extraction directory.
67 Convert the names of the extracted files and directories to lowercase.
69 List, rather than extract, the contents of the zipfile.
72 When extracting a file from the zipfile, if a file with the same name
73 already exists on disk, the file is silently skipped.
76 When extracting a file from the zipfile, if a file with the same name
77 already exists on disk, the existing file is replaced with the file
81 When extracting files from the zipfile, they are written to stdout.
82 The normal output is suppressed as if
86 Quiet: print less information while extracting.
88 Test: do not extract anything, but verify the checksum of every file
92 When extracting a file from the zipfile, if a file with the same name
93 already exists on disk, the existing file is replaced with the file
94 from the zipfile if and only if the latter is newer than the former.
95 Otherwise, the file is silently skipped.
97 List verbosely, rather than extract, the contents of the zipfile.
100 by using the long listing.
101 Note that most of the data is currently fake and does not reflect the
102 content of the archive.
104 Exclude files matching the pattern
108 Note that only one of
117 environment variable is defined, the
119 command-line option has no effect, and additional debugging
120 information will be printed to
125 utility aims to be sufficiently compatible with other implementations
126 to serve as a drop-in replacement in the context of the
129 No attempt has been made to replicate functionality which is not
130 required for that purpose.
132 For compatibility reasons, command-line options will be recognized if
133 they are listed not only before but also after the name of the
138 option should only affect files which are marked as text files in the
139 zipfile's central directory.
142 library reads zipfiles sequentially, and does not use the central
143 directory, that information is not available to the
148 utility will assume that a file is a text file if no non-ASCII
149 characters are present within the first block of data decompressed for
151 If non-ASCII characters appear in subsequent blocks of data, a warning
156 utility is only able to process ZIP archives handled by
158 Depending on the installed version of
160 this may or may not include self-extracting archives.
171 utility and this manual page were written by
172 .An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org .
176 .An Tim Kientzle Aq kientzle@FreeBSD.org .