##
$ perl -e "print $^O, qq{\n};"
cygwin
####
BASH=/cygdrive/c/GNUWin32/bin/bash
BASH_ARGC=()
BASH_ARGV=()
BASH_LINENO=()
BASH_SOURCE=()
BASH_VERSINFO=([0]="3" [1]="2" [2]="39" [3]="20"[4]="release" [5]="i686-pc-cygwin")
BASH_VERSION='3.2.39(20)-release'