shell script gawe manajemen user

#!/bin/sh
clear;
i=1;
while [ "$i" -gt 0 ]
do
echo "---------------------------------------";
echo " Program Manajeman User ";
echo "---------------------------------------";
echo " 1. Membuat user baru. ";
echo " 2. Melihat daftar user (/etc/passwd). ";
echo " 3. Menghapus user. ";
echo " 4. Keluar. ";
echo "---------------------------------------";