#!/bin/bash

# Script to add a user to Linux system

if [ $(id -u) -eq 0 ]; then

        read -p "Enter username : " username

        read -s -p "Enter password : " password

        egrep "^$username" /etc/passwd >/dev/null

        if [ $? -eq 0 ]; then

                echo "$username exists!"

                exit 1

        else

                pass=$(perl -e 'print crypt($ARGV[0], "password")' $password)

                useradd -m -p $pass $username

                [ $? -eq 0 ] && echo "User has been added to system!" || echo "Failed to add a user!"

        fi

else

        echo "Only root may add a user to the system"

        exit 2

fi