Bash method that returns random binary value

binary_random.sh

function result()
{
	BINARY=2
	T=1
	number=$RANDOM

	let "number %= $BINARY"
	#  Note that    let "number >>= 14"    gives a better random distribution
	#+ (right shifts out everything except last binary digit).
	if [ "$number" -eq $T ]
	then
	  return 1
	else
	  return 0
	fi
}

result
echo $?