#!/bin/bash 
clear
# Script to add a user to this Linux system
if [ $(id -u) -eq 0 ]; then                                     # check if user is root
        read -p "Enter User Name : " username

        while [ -z $username ]|| egrep "^$username" /etc/passwd  1>/dev/null;
        do
        echo -ne "Either user exists or you entered a blank, enter username again: ";read -e  username
        done

        password=`</dev/urandom tr -dc A-Za-z0-9 | head -c8`

        echo -ne "\nPlease Enter your User ID Number: ";read -ern5 uid
        while [[ ! $uid =~ ^[0-9]+$ ]]||egrep $uid /etc/passwd >/dev/null; do
        echo -ne "Please re-enter your uid positive intergers only: ";read -ern5 uid
        done

        read -p "Enter a Comment : " comment
        commentstatic="Internal SFTP Account"

        read -p "Enter Users Home Directory : " homedir
        while [ ! -d "$homedir" ];
        do
        echo -ne "\n$homedir Directory Not Found! Please re-enter: "; read homedir
        done        

pass=$(perl -e 'print crypt($ARGV[0], "password")' $password) # passing the password entered
echo ""
        shell=/bin/bash                                                 # case statment for shell selection.
        useradd -u $uid -p $pass -c "$comment $commentstatic" -d $homedir -s $shell $username

        echo "Setting security on users home directory"
        chown $username:ftp $homedir                                    # security settings for both shells
        chmod 775 $homedir
        echo -e "$username" '\t' "$homedir" >> /etc/security/chroot.conf

clear
echo -e "\n\tThis users login details is as follows: \n"
echo -e "\n\tUsername is: $username \n"
echo -e "\tPassword is: $password \n"
echo -e "\tUser's ID Number is: $uid \n"
echo -e "\tComment is: $comment $commentstatic \n"
echo -e "\tUsers Home Directory is: $homedir \n"
echo -e "\tUsers Shell is: $shell \n"
fi
STOPM=`date -u "+%s"`
RUNTIMEM=`expr $STOPM - $STARTM`
if (($RUNTIMEM>59)); then
TTIMEM=`printf "%dm%ds\n" $((RUNTIMEM/60%60)) $((RUNTIMEM%60))`
else
TTIMEM=`printf "%ds\n" $((RUNTIMEM))`
fi
echo -e "\tExecuting "script function" took: $TTIMEM\n"