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.