* [1]Cygwin
     *
          + [2]Install Cygwin
          + [3]Update Cygwin
          + [4]Search Packages
          + [5]Licensing Terms

     * [6]Cygwin/X

     * [7]Community
     *
          + [8]Reporting Problems
          + [9]Mailing Lists
          + [10]Newsgroups
          + [11]IRC channels
          + [12]Gold Stars
          + [13]Mirror Sites
          + [14]Donations

     * [15]Documentation
     *
          + [16]FAQ
          + [17]User's Guide
          + [18]API Reference
          + [19]Acronyms

     * [20]Contributing
     *
          + [21]Source in Git
          + [22]Cygwin Packages
          + [23]Cygwin Apps

     * [24]Related Sites

Cygwin

   Get that [25]Linux feeling - on Windows

This is the home of the Cygwin project

What...

...is it?

   Cygwin is:
     * a large collection of GNU and Open Source tools which provide functionality
       similar to a [26]Linux distribution on Windows.
     * a DLL (cygwin1.dll) which provides substantial POSIX API functionality.

...isn't it?

   Cygwin is not:
     * a way to run native Linux apps on Windows. You must rebuild your application
       from source if you want it to run on Windows.
     * a way to magically make native Windows apps aware of UNIX® functionality like
       signals, ptys, etc. Again, you need to build your apps from source if you
       want to take advantage of Cygwin functionality.

Cygwin version

   The most recent version of the Cygwin DLL is [27]3.5.3.

   The Cygwin DLL currently works with all recent, commercially released x86_64
   versions of Windows, starting with Windows 8.1. For more information see the
   [28]FAQ.

Note to users of older Windows versions

   Cygwin 3.4.10 was the last Cygwin version supporting Windows 7, Windows 8,
   Windows Server 2008 R2 and Windows Server 2012. It will stay available via the
   Cygwin installer for a while, but there's no guarantee that updated Cygwin
   packages will still run on these systems. If you need Cygwin on these or even
   older systems, consider using the [29]Cygwin Time Machine.

Installing Cygwin

   Install Cygwin by running [30]setup-x86_64.exe

   Use the setup program to perform a [31]fresh install or to [32]update an existing
   installation.

   Keep in mind that individual packages in the distribution are updated separately
   from the DLL so the Cygwin DLL version is not useful as a general Cygwin
   distribution release number.

Support for Cygwin

   For all Cygwin-related questions, observations, suggestions and bug reports,
   please check the resources available at this site, such as the [33]FAQ, the
   [34]User's Guide and the [35]mailing list archives. If you've exhausted these
   resources then please send email to the [36]appropriate mailing list.

   Please send notification of technical problems (bad html, broken links)
   concerning these web pages to [37]the Cygwin mailing list.

   Please do not send personal email with "quick questions" to individual Cygwin
   contributors. The Cygwin mailing lists are the places for all questions. Really.
   I mean it.

   The Cygwin DLL and utilities are Copyright © Cygwin authors. Other packages have
   other copyrights.
   UNIX ® is a registered trademark of the Open Group in the United States and other
   countries.
   NOT SEND EMAIL TO THIS ADDRESS: [38]aaaspam@sourceware.org IT IS HERE ONLY TO
   COLLECT SPAM. IF YOU SEND EMAIL TO THIS ADDRESS YOU WILL BE AUTOMATICALLY
   BLOCKED.

References

   1. https://cygwin.com/index.html
   2. https://cygwin.com/install.html
   3. https://cygwin.com/install.html
   4. https://cygwin.com/packages/
   5. https://cygwin.com/licensing.html
   6. http://x.cygwin.com/
   7. https://cygwin.com/who.html
   8. https://cygwin.com/problems.html
   9. https://cygwin.com/lists.html
  10. https://cygwin.com/news.html
  11. https://cygwin.com/irc.html
  12. https://cygwin.com/goldstars/
  13. https://cygwin.com/mirrors.html
  14. https://cygwin.com/donations.html
  15. https://cygwin.com/docs.html
  16. https://cygwin.com/faq.html
  17. https://cygwin.com/cygwin-ug-net.html
  18. https://cygwin.com/cygwin-api/
  19. https://cygwin.com/acronyms/
  20. https://cygwin.com/contrib.html
  21. https://cygwin.com/git.html
  22. https://cygwin.com/packages.html
  23. https://sourceware.org/cygwin-apps/
  24. https://cygwin.com/links.html
  25. https://www.linuxfoundation.org/
  26. https://en.wikipedia.org/wiki/Linux_distribution
  27. https://cygwin.com/pipermail/cygwin-announce/2024-April/011710.html
  28. https://cygwin.com/faq.html#faq.what.supported
  29. http://www.crouchingtigerhiddenfruitbat.org/Cygwin/timemachine.html
  30. https://cygwin.com/setup-x86_64.exe
  31. https://cygwin.com/install.html
  32. https://cygwin.com/install.html
  33. https://cygwin.com/faq.html
  34. https://cygwin.com/cygwin-ug-net.html
  35. https://cygwin.com/lists.html
  36. https://cygwin.com/lists.html
  37. https://cygwin.com/lists.html#cygwin
  38. mailto:aaaspam@sourceware.org