export LS_OPTIONS="--color=auto -F -b --time-style=long-iso"
elif [ "$SYSTEM" = "Darwin" ]; then
export LS_OPTIONS="-G -F -b"
export LS_OPTIONS="--color=auto -F -b --time-style=long-iso"
elif [ "$SYSTEM" = "Darwin" ]; then
export LS_OPTIONS="-G -F -b"