Cygwin
Used by 5 peoplecygwin.com ↗

“For hacking, in addition to my Ubuntu VMware kit, I keep cygwin tools on my box so I can whip up a quick perl script if needed.”
Andrew Huang Interview, Hardware misfit · via Uses This
“For hacking, in addition to my Ubuntu VMware kit, I keep cygwin tools on my box so I can whip up a quick perl script if needed.”