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STREAMZIP(1) Perl Programmers Reference Guide STREAMZIP(1)
NAME
streamzip - create a zip file from stdin
SYNOPSIS
producer | streamzip [opts] | consumer
producer | streamzip [opts] -zipfile=output.zip
DESCRIPTION
This program will read data from "stdin", compress it into a zip container and, by
default, write a streamed zip file to "stdout". No temporary files are created.
The zip container written to "stdout" is, by necessity, written in streaming format. Most
programs that read Zip files can cope with a streamed zip file, but if interoperability is
important, and your workflow allows you to write the zip file directly to disk you can
create a non-streamed zip file using the "zipfile" option.
OPTIONS
-zip64
Create a Zip64-compliant zip container. Use this option if the input is greater than
4Gig.
Default is disabled.
-zipfile=F
Write zip container to the filename "F".
Use the "Stream" option to force the creation of a streamed zip file.
-member-name=M
This option is used to name the "file" in the zip container.
Default is '-'.
-stream
Ignored when writing to "stdout".
If the "zipfile" option is specified, including this option will trigger the creation
of a streamed zip file.
Default: Always enabled when writing to "stdout", otherwise disabled.
-method=M
Compress using method "M".
Valid method names are
* store Store without compression
* deflate Use Deflate compression [Deflault]
* bzip2 Use Bzip2 compression
* lzma Use LZMA compression
* xz Use xz compression
* zstd Use Zstandard compression
Note that Lzma compress needs "IO::Compress::Lzma" to be installed.
Note that Zstd compress needs "IO::Compress::Zstd" to be installed.
Default is "deflate".
-0, -1, -2, -3, -4, -5, -6, -7, -8, -9
Sets the compression level for "deflate". Ignored for all other compression methods.
"-0" means no compression and "-9" for maximum compression.
Default is 6
-version
Display version number
-help
Display help
Examples
Create a zip file bt reading daa from stdin
$ echo Lorem ipsum dolor sit | perl ./bin/streamzip >abcd.zip
Check the contents of "abcd,zip" with the standard "unzip" utility
Archive: abcd.zip
Length Date Time Name
--------- ---------- ----- ----
22 2021-01-08 19:45 -
--------- -------
22 1 file
Notice how the "Name" is set to "-". That is the default for a few zip utilities whwre
the member name is not given.
If you want to explicitly name the file, use the "-member-name" option as follows
$ echo Lorem ipsum dolor sit | perl ./bin/streamzip -member-name latin >abcd.zip
$ unzip -l abcd.zip
Archive: abcd.zip
Length Date Time Name
--------- ---------- ----- ----
22 2021-01-08 19:47 latin
--------- -------
22 1 file
When to write a Streamed Zip File
A Streamed Zip File is useful in situations where you cannot seek backwards/forwards in
the file.
A good examples is when you are serving dynamic content from a Web Server straight into a
socket without needing to create a temporary zip file in the filesystsm.
Similarly if your workfow uses a Linux pipelined commands.
SUPPORT
General feedback/questions/bug reports should be sent to
<https://github.com/pmqs/IO-Compress/issues> (preferred) or
<https://rt.cpan.org/Public/Dist/Display.html?Name=IO-Compress>.
AUTHOR
Paul Marquess pmqs AT cpan.org.
COPYRIGHT
Copyright (c) 2019-2021 Paul Marquess. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same
terms as Perl itself.
perl v5.34.0 2023-11-23 STREAMZIP(1)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2024-12-12 19:36 @18.191.147.141 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)