Free zip software for linux

Zip is a compression and file packaging utility for Unix, VMS, DOS, OS/2, Windows 9x/NT, Amiga, Atari, Macintosh, BeOS, SMS/QDOS, MVS, VM/CMS, and others.
Zip is analogous to a combination of the Unix commands tar(1) and compress(1) and is compatible with PKWAREs PKZIP and Nico Maks WinZip. Its part of the Info-ZIP project.
Main features:
- creating zipfiles in a pipe or on a device
- VMS and OS/2 extended file attributes
- conversion between Unix, MS-DOS and Macintosh text file formats
- the ability to run on most of your favorite operating systems.
Enhancements:
- fixed -R operation to match the supplied file patterns in all recursed subdirectories, like PKZIP 2.04 "-p -r" (or PKZIPC 4+ "-recurse")
- handle cases where -x, -R, and -i patterns are mixed
- new example C-Sharp code for using DLLs
- added some directory-search speedups
- fixed bug when encrypting large uncompressible files
- fixed Windows NTFS time problem
- fixed VMS logical name parse problem
- added VMS DEBUG option
- updated VMS help
- fixed selection of files to delete by date
- added -MM option where each input file pattern must match at least one file and all input files must be readable
- added check for when Zip tries to exceed seek limit in output file
- minor changes to compile with Visual C++ 2005
- added support for Unix FIFOs (named pipes)
- other minor fixes

Archive::Zip is a Perl module which provides an interface to ZIP archive files.

SYNOPSIS

# Create a Zip file
use Archive::Zip qw( :ERROR_CODES :CONSTANTS );
my $zip = Archive::Zip->new();

# Add a directory
my $dir_member = $zip->addDirectory( dirname/ );

# Add a file from a string with compression
my $string_member = $zip->addString( This is a test, stringMember.txt );
$string_member->desiredCompressionMethod( COMPRESSION_DEFLATED );

# Add a file from disk
my $file_member = $zip->addFile( xyz.pl, AnotherName.pl );

# Save the Zip file
unless ( $zip->writeToFileNamed(someZip.zip) == AZ_OK ) {
die write error;
}

# Read a Zip file
my $somezip = Archive::Zip->new();
unless ( $somezip->read( someZip.zip ) == AZ_OK ) {
die read error;
}

# Change the compression type for a file in the Zip
my $member = $somezip->memberNamed( stringMember.txt );
$member->desiredCompressionMethod( COMPRESSION_STORED );
unless ( $zip->writeToFileNamed( someOtherZip.zip ) == AZ_OK ) {
die write error;
}

The Archive::Zip module allows a Perl program to create, manipulate, read, and write Zip archive files.

Zip archives can be created, or you can read from existing zip files.
Once created, they can be written to files, streams, or strings. Members can be added, removed, extracted, replaced, rearranged, and enumerated. They can also be renamed or have their dates, comments, or other attributes queried or modified. Their data can be compressed or uncompressed as needed.
Members can be created from members in existing Zip files, or from existing directories, files, or strings.

This module uses the Compress::Zlib library to read and write the compressed streams inside the files.

Long Range ZIP is a compression program that can achieve very high compression ratios and speed when used with large files. It uses the combined compression algorithms of lzma for maximum compression, lzo for maximum speed, and the long range redundancy reduction of rzip.
It is designed to scale with increases with RAM size, improving compression further. A choice of either size or speed optimizations allows for either better compression than even lzma can provide, or better speed than gzip, but with bzip2 sized compression levels.
Enhancements:
- Blocks to be compressed by lzma are now scanned by lzo in advance to find incompressible data and bypass attempting to compress them.
- This speeds up substantially attempting to compress incompressible files, and should fix the "lzma getting stuck on an incompressible block" bug.
- Basic Darwin support was added.
- Compression mode was stratified for lower levels of lzma compression.

foxdoc is an extension which allows Firefox to browse HTML pages and sites contained into zip files.

This extension allows Firefox to browse HTML pages and sites contained into zip files by creating an associated HTML that points to the compressed archive. Browse documentation without unpack it!

To use it just drop the zip file in the sidebar.

libzip library can read, create, and modify zip archives. Files can be added from data buffers, files, or compressed data copied directly from other zip archives.
Changes made without closing the archive can be reverted.
Enhancements:
- New functions were added for adding directories to an archive and to clear the internal error state.
- Zip archives larger than 2 GB and streamed zip archives are now supported.

Kenzip is a frontend for p7-zip.

You can create password protected 7z and zip archives with this python-qt3 utility

(Unfortunately ark does not support password protected archives.) KenZip has feasible dependency, you can install it to almost any existing distro.

It has been tested on OpenSuSE 10.2, Debian testing 2006.01. and Kanotix 2006-01-RC4 using the distros python qt3 package.

Do not forget to install python qt3 and p7-zip before! Prefer the distros package from repository for Debian based distributions, and the binary installer for other linux distros.

mod_ziplook offers is a zip-file browsing module that can send files with gzip transfer-encoding.
Main features:
- Whole directory structure of ZIP-file can be seen.
- Separate files can be seen easily (/xxxx.zip/dir/afile.html)
- In case of directories index.html is looked. (/y/x.zip/dir/ => /y/x.zip/dir/index.html)
- Handles If-Modified-Since and NotModified-status
- If your browser supports gzip content-encoding and documents in ZIP-archive are "Deflate"-compressed: module changes files to gzip format in fly. This makes things very fast (and server cpu & network capasity is saved)
Module uses miniunzip - unzip library and that uses zlib
Install and config:
- Module needs zlib in your computer
A. Open tar.gz - file.
B. find your apxs (apache module handling script)
C. Compile (with zlib)
apxs -c mod_ziplook.c -lz
D. Run installing script (as root is needed)
apxs -i -a mod_ziplook.so
E. Add handler to for zip-files in httpd.conf (look mod_mime.c section)
AddHandler ziplook zip
F. Restart your apache
G. Seek an zip-file and try with it.
http://your.host/directory/myzipfile.zip
http://your.host/directory/myzipfile.zip/a-file-in-zip-file.html

rubyzip is a Ruby module for reading and writing zip files.
Installation:
If you have rubygems you can install rubyzip directly from the gem repository
gem install rubyzip
Otherwise obtain the source (see below) and run
ruby install.rb
To run the unit tests you need to have test::unit installed
rake test
Enhancements:
- Symlink support was added along with support for Unix file permissions.
- Memory usage during decompression was reduced.
- Zip streams now model IO objects more closely.