function to open explorer window for current working directory, provided absolute path, provided relative path, from within a cygwin ex: open (opens current working directory in an explorer window), open /home (opens home directory), open ../home

open-explorer.bash

# open explorer directory relative, absolute or empty for current path
open() {
	local var="$1"
	[[ -z "$var" ]] && cygstart -x "$(cygpath -wa "$PWD")"
	if [[ "${var:0:1}" == "/" ]]; then
		[[ -d "$var" ]] || { echo "bad path"; return 1; }
		cygstart -x "$(cygpath -wa "$var")"
	elif [[ "${var:0:3}" == "../" ]]; then
		[[ -d "$(cd "$var" 2>/dev/null && pwd)" ]] || { echo "bad path"; return 1; }
		cygstart -x "$(cygpath -wa "$(cd "$var"; pwd)")" 
	else
		[[ -d "${PWD}/${var}" ]] || { echo "bad path"; return 1; }
		cygstart -x "$(cygpath -wa "${PWD}/${var}")"
	fi
}