CYGNIX means "CYGnus Pseudo-uNIX". It is a pseudo-UNIX environment for Windows. It's tiny but powerful. CygNix has integrated many useful Unix/Linux Tools, including BASh, mc, awk, wget, LFtp, sed, ssh, vim, and much more. It is ideal for system administrators who need to logon and admin remote Unix machines. Unix users who sometimes have to do some routine works under Windows will also find it useful. And it's also a good choice for beginners to learn Unix.
CygNix is safe software. It does not install any adware or spyware. It does not change any system settings. It does not install any system drivers. It does not install any files to Windows system folders. CygNix installs all its files to its installation folder which you can specify during the installation. You can easily uninstall the software from the Windows "Add/Remove Programs" control panel.