シェルに引数を渡す方法

try.sh
------------------------
#!/bin/bash

HIKISUU=1

echo "$HIKISUU" | ./hoge.sh

------------------------

hoge.sh
------------------------
#!/bin/bash

if [ "$1" = "1" ]
then
echo "OK"
else
echo "NG"
fi
------------------------

$./try.sh
を実行すると