For all Cygwin-related questions, observations, suggestions and bug reports, please check the resources available at this site, such as the FAQ, the User's Guide and the mailing list archives.

Run setup-x86_64.exe any time you want to update or install a Cygwin package for 64-bit windows. The gpg signature for setup-x86_64.exe can be used to verify the validity of this binary using the public …

To install a basic Cygwin environment, run the Cygwin Setup program from the Cygwin homepage and click Next at each page. The default settings are correct for most users.

Cygwin User's Guide The Cygwin User's Guide is now available in several formats: Several HTML files, with Table of Contents One large compressed HTML file One PDF file Alternatively, you may jump to …

I read the above but I want to bundle Cygwin with a product, and ship it to customer sites. How can I do this without conflicting with any Cygwin installed by the user?

A brief history of the Cygwin project Highlights of Cygwin Functionality Introduction Permissions and Security File Access Text Mode vs. Binary Mode ANSI C Library Process Creation Signals Sockets …

You may choose to install "Cygwin Terminal" shortcuts on the Desktop and/or Start Menu. These shortcuts run mintty, which will start your default shell as specified in /etc/passwd.

One common cause of slow Cygwin Terminal starts is a bad DNS setup. This particularly affects AD clients, but there may be other things in your Cygwin startup that depend on getting fast answers …

As long as the Cygwin CWD is usable as Windows CWD, the Cygwin and Windows CWDs are in sync within a process. However, if the Cygwin process changes its working directory into one of the …

With Cygwin installed, users have access to many standard UNIX utilities. They can be used from one of the provided shells such as bash or from the Windows Command Prompt.