Membuat user SSH interaktif (interactive)

#!/bin/bash
# Script to add a user to Linux system
if [ $(id -u) -eq 0 ]; then
        read -p "Masukkan username : " username
        read -s -p "Masukkan password : " password
        egrep "^$username" /etc/passwd >/dev/null
        if [ $? -eq 0 ]; then
                echo "$username Sudah Ada!"
                exit 1
        else
                pass=$(perl -e 'print crypt($ARGV[0], "password")' $password)
                useradd -M -p $pass $username
                [ $? -eq 0 ] && echo "User telah berhasil dibuat!" || echo "Gagal menambah user!"
        fi
else
        echo "gak oleh rek, iki dudu jatah mu gawe user"
        exit 2
fi