How to add multiple user with sh?

Step 1. mkdir bin

Step 2.cd/root/bin

Step3.vim useradd.sh

#:/bin/bash

groupadd workstation

for username in workstation1 workstation2 workstation3 workstation4 workstation5

do

        useradd -G workstation $username

        echo "password" | passwd --stdin $username

done

Step4.sh useradd.sh

Step5.id workstation1