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Unix and Linux include a number of very useful programs. Windows has some that are similar, but you can also find actual Unix tools for Windows.
Where can I find Unix Tools for Windows?
If you've worked for any length of time on a Unix or Linux system, one of the things you begin to miss when you move to Windows is the collection of command-line tools that are part of most every installation. Almost everything can be done with Windows tools, but for those things that can't the old Unix standbys would be nice. Even for those that can there's a certain simplicity once you've mastered the Unix toolset that can be hard to recapture.
Cygwin is the canonical port of Unix tools to Win32. Chances are whatever you're looking for is here. I've used several of the Cygwin tools for years. I have only two issues with Cygwin: it now uses a setup program that is less than intuitive, and most of the Cygwin tools depend on a Unix emulation DLL. The setup creates a directory layout that for obvious reasons looks very Unix-like. In fact the default installation sets up a Unix emulation environment running the bash shell.
If just grabbing a tool and running it is more to your liking, then GNU Utilities for Win32 may do the trick. These tools are dependant only on the C runtime. Extract what you need from the downloaded ZIP file and you're ready to run.