Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders. Combine several files into a single zipped folder to more easily share a group of files.

• UnZip 6.0 was released on 29 April 2009. MacZip 1.06 was released on 22 February 2001. See the Zip, UnZip and WiZ pages for current status and download locations. In addition, a new set of discussion forums was set up in October 2007. These replace the older QuickTopic forum, which was overrun by spam. (The spam postings have since been deleted.
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To zip (compress) a file or folder

For the unzip utility, execute a similar command as shown. $ sudo apt install unzip Again, just like zip, you can confirm the version of the unzip utility installed by running. $ unzip -v How to Install Zip/Unzip in RedHa/CentOS/Fedora. Just like on Debian distributions, installing zip and unzip utilities on Redhat distros is quite simple. Jad 1.5.7b for Mac OS X (Rhapsody 5.3) on PowerPC platform (372317 bytes). Jad 1.5.7a for Solaris 7 on Intel platform (252582 bytes) - try the version for Solaris 8 instead. Jad 1.5.5.3 for AIX 4.2 on IBM RS/6000 platform (360970 bytes). Unzip jad.zip file into any appropriate directory on your hard drive. This will create two files. CAM UnZip is a free compressor and file extractor that works with ZIP files. It supports drag and drop to quickly open a ZIP file and can create password-protected archives. There's an interesting feature in CAM UnZip where the program can be configured to automatically run a 'setup.exe' file if one is extracted from a ZIP archive.

1. Locate the file or folder that you want to zip.

2. Press and hold (or right-click) the file or folder, select (or point to) Send to, and then select Compressed (zipped) folder.
   A new zipped folder with the same name is created in the same location. To rename it, press and hold (or right-click) the folder, select Rename, and then type the new name.

To unzip (extract) files or folders from a zipped folder

1. Locate the zipped folder that you want to unzip (extract) files or folders from.

2. Do one of the following:

   • To unzip a single file or folder, open the zipped folder, then drag the file or folder from the zipped folder to a new location.

   • To unzip all the contents of the zipped folder, press and hold (or right-click) the folder, select Extract All, and then follow the instructions.

Notes:

• To add files or folders to a zipped folder you created earlier, drag them to the zipped folder.

• If you add encrypted files to a zipped folder, they'll be unencrypted when they're unzipped, which might result in unintentional disclosure of personal or sensitive information. For that reason, we recommend that you avoid zipping encrypted files.

• Some types of files, like JPEG images, are already highly compressed. If you zip several JPEG pictures into a folder, the total size of the folder will be about the same as the original collection of pictures.

LATEST RELEASES: Zip 3.00 was released on 7 July 2008. WiZ 5.03 was released on 11 March 2005. UnZip 6.0 was released on 29 April 2009.

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MacZip 1.06 was released on 22 February 2001. See the Zip, UnZip and WiZ pages for current status and download locations.

In addition, a new set of discussion forums was set up in October 2007. These replace the older QuickTopic forum, which was overrun by spam. (The spam postings have since been deleted, but further posts to the old forum are permanently disabled.)

Info-ZIP is a diverse, Internet-based workgroup of about 20 primary authors and over one hundred beta-testers, formed in 1990 as a mailing list hosted by Keith Petersen on the original SimTel site at the White Sands Missile Range in New Mexico.

Info-ZIP's purpose is to provide free, portable, high-quality versions of the Zip and UnZip compressor-archiver utilities that are compatible with the DOS-based PKZIP by PKWARE, Inc.

Info-ZIP supports hardware from microcomputers all the way up to Cray supercomputers, running on almost all versions of Unix, VMS, OS/2, Windows 9x/NT/etc. (a.k.a. Win32), Windows 3.x, Windows CE, MS-DOS, AmigaDOS, Atari TOS, Acorn RISC OS, BeOS, Mac OS, SMS/QDOS, MVS and OS/390 OE, VM/CMS, FlexOS, Tandem NSK and Human68K (Japanese). There is also some (old) support for LynxOS, TOPS-20, AOS/VS and Novell NLMs. Shared libraries (DLLs) are available for Unix, OS/2, Win32 and Win16, and graphical interfaces are available for Win32, Win16, WinCE and Mac OS.

Info-ZIP code has been incorporated into a number of third-party products as well, both commercial and freeware. Some of the more interesting ones (well, historically speaking) include the use of UnZip code in the unzip.dll distributed with IBM's OS/2 Warp BonusPak and WebExplorer, as part of the reinstallation code for the IBM Aptivas preloaded with OS/2 Warp, and as part of IBM's Infoprint product. Sun used Info-ZIP's self-extractor to distribute the NT version of their HotJava browser, Novell uses UnZip for NetWare 6 installation, and SAP includes it in Business One. Various Windows products such as WinZip and the DynaZIP DLLs incorporate Info-ZIP code, too. And let us not forget Pretty Good Privacy (PGP), an excellent encryption program that uses Info-ZIP code as a first step in encrypting files. Info-ZIP's primary compression engine has also been spun off into the free zlib compression library, used in Netscape/Mozilla/Firefox, the Linux kernel, Windows, Java, virtually all PNG-supporting software, and countless other products.

Info-ZIP can be reached by a web-based form, but you'll have to read our Frequently Asked Questions page to find out how. Our two primary web sites are hosted by our very own Hunter Goatley and by the most excellent SourceForge. Secondary distribution sites are hosted by the Comprehensive TeX Archive Network.

Info-ZIP Downloads

UnZip - for extracting and viewing files in .zip archives. Also includes: (UnZip documentation)

• ZipInfo - for detailed zipfile information (Documentation)
• fUnZip - for extracting in a pipe (Documentation)
• UnZipSFX - for creating self-extracting archives (Documentation)

Zip - a compressor/archiver for creating and modifying zipfiles. Also includes: (Zip Documentation)

• ZipNote - for adding/deleting comments to zipfiles (Documentation)
• ZipSplit - for splitting zipfiles (Documentation)
• ZipCloak - for encrypting and decrypting (with optional zcrypt add-on package) (Documentation)

WiZ - a combination Zip/UnZip graphical front end for Windows platforms.

MacZip - a combination Zip/UnZip graphical front end for Mac OS.

Info-ZIP Links

• Info-ZIP License - our new(er), BSD-like (i.e., very liberal) license
• Info-ZIP FAQ - Frequently Asked Questions about how and where to download things, what about commercial usage, and anything else we think of
• Info-ZIP Mailing Lists - how to subscribe to our announcements list (very low traffic) or general discussion list (relatively low traffic)
• Info-ZIP Internet Sites - we're everywhere! we're everywhere!
  • web pages:
    • www.info-zip.org (US) - Info-ZIP's home site
    • infozip.sourceforge.net (US) - Info-ZIP's home site 2
    • www.ctan.org (US) and CTAN mirrors[FROZEN]
    • www.mirrorservice.org (UK)
    • info-zip.ipmedia.de (Germany)
  • files:
    • sourceforge.net (US, Ireland, France, Belgium, Switzerland, Germany, Australia, etc.; source and (some) current binaries) - Info-ZIP's home site
    • ftp.info-zip.org (US) - Info-ZIP's other home site
    • www.mirrorservice.org (UK)
    • tug.ctan.org (US) [FROZEN]
    • ftp.tex.ac.uk (UK) [FROZEN]
    • ftp.dante.de (Germany) [FROZEN]
• Info-ZIP People - who we are, where we are and what we do (below)
• Info-ZIP Rogue's Gallery - scary (old) pictures of us
• Info-ZIP News - recent news and happenings involving Info-ZIP and/or its members
• Zip 'Imposters' - other programs called Zip
• Related Links - other compression and archiver resources, such as PKWARE and PNG

Info-ZIP People

The core Info-ZIP group consists of programmers from six countries on three continents:

• Ed Gordon (US); Zip maintainer
• Christian Spieler (Germany); UnZip maintainer; Win32, DOS
• Mike White (US); WiZ maintainer; Windows DLLs
• Dirk Haase (Germany); MacZip maintainer
• Michael Cleary (US?); MVS
• Hunter Goatley (US); VMS, mailing list administrator, primary web-site host
• Ian Gorman (Canada); VM/CMS, MVS (OS/390 Base)
• Greg Hartwig (US); VM/CMS
• Jonathan Hudson (UK); SMS/QDOS, VMS
• Paul Kienitz (US); Amiga, Win32
• Johnny Lee (Canada); DOS, Win32
• Steve P. Miller (US); Windows CE
• Keith Owens (Australia); MVS, Fujitsu MSP
• Kai Uwe Rommel (Germany); OS/2
• Steve Salisbury (US); Win32
• Steven M. Schweda (US); VMS
• Dave Smith (UK); Tandem NSK
• Cosmin Truta (Canada); Zip and UnZip maintenance releases
• Onno van der Linden (Netherlands); former Zip maintainer
• Paul von Behren (US); OS/390 OpenEdition

If you're brave enough, you can check out the Info-ZIP Rogue's Gallery and see what some of us (used to) look like. It's fairly hideous.

Former members of the core Info-ZIP group (i.e., those who no longer even pretend to be active) include:

• Mark Adler (US); original Zip author; UnZip decompression
• John Bush (US); Amiga, Solaris
• Karl Davis (Australia); Acorn RISC OS
• Harald Denker (Germany); Atari, MVS
• Jean-loup Gailly (France); Zip compression; former Zip maintainer/co-author; Unix, DOS [aussi en français]
• Robert Heath (US); Windows GUI
• Chris Herborth (Canada); QNX, BeOS, formerly Atari
• David Kirschbaum (US); original UnZip maintainer
• Igor Mandrichenko (Russia/Ukraine); VMS
• Sergio Monesi (Italy); Acorn RISC OS
• Rainer Nausedat (Germany); 64KB deflate
• George Petrov (Netherlands); MVS, VM/CMS
• Greg Roelofs (US); former UnZip maintainer/co-author; Unix, OS/2, DOS, early VMS port
• Antoine Verheijen (Canada); Macintosh
• Rich Wales (US); original Zip co-author

In addition, Info-ZIP would like to tip our collective hat to Samuel H. Smith, the gentleman who wrote the original MS-DOS unzip on which Info-ZIP's UnZip 3.0 was based--and who kindly made the source code available for free. Even though virtually all of his code has by now been rewritten from scratch, Info-ZIP still owes Mr. Smith a debt of gratitude for getting us into this mess. A package of virtual chocolate-chip cookies is in the e-mail.

Last updated 8 July 2008. Web page (occasionally) maintained by Greg Roelofs, but please direct

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all comments and questions to the Info-ZIP authors at the address/bug page given in the FAQ. Copyright © 1995-2008 Greg Roelofs.

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