Shell Programming and Scripting

#============================================================
#  Script Name:   forgotpass
#  By:            JRG
#  Date:          March 5, 2011
#  Purpose:       A shell script that enables a user to 
#          enter username and recover password
#  Command Line:  forgotpass
#===========================================================
userfile=~/casestudies/login_users
  clear
  tput cup 2 4; echo "      Password Recovery      "
  tput cup 3 4; echo "============================="
  tput cup 4 4; echo "Username: " ; read user 
     if ("$user" = grep $username userfile | tr ':' ' ');     #username is the username of the user when he created an account, it is stored in login_users
         then 
              tput cup 6 4; echo "Then choose a question to answer below"
              tput cup 7 8; echo "(A) What is your 5th favorite color? "
              tput cup 12 8; echo "choice : "         
         else
              tput cup 14 8; echo "Invalid choice. Choose another."
     fi         
              read question || continue
              case $question in
                   [Aa]) tput cup  8; echo "answer in question A: " ; read $A
                      if  ("$answer"= grep $A userfile | tr ':' ' ')  #A is the answer of the user in question A, it is stored in the login_users 
                        then      
                             echo "Correct, your password is: " 
                             echo 
                             grep $pass $userfile | tr ':' ' '   #pass is the original password of the user, it is stored in login_users
                        else
                             echo "Incorrect. Choose another question to answer." ;
                      fi ;;

if ("$user" = grep $username userfile | tr ':' ' ');

u=$(grep $username userfile | tr ':' ' ' )

if [[  "$user" == "$u" ]];
then
   Commands.
fi

 if  ("$answer"= grep $A userfile | tr ':' ' ')

 if [[ "$answer" == $(grep $A userfile | tr ':' ' ') ]]

[Aa]) tput cup  8; echo "answer in question A: " ; read $A

echo "Correct, your password is: " 
echo 
grep $pass $userfile | tr ':' ' '   #pass is the original password of the user, it is stored in login_users

#============================================================
#  Script Name:   useradd
#  By:            JRG
#  Date:          March 5, 2011
#  Purpose:       A shell script used to add 
#          new user accounts to the login_users file
#  Command Line:  useradd
#===========================================================
trap "rm ~/tmp/* 2> /dev/null; exit" 0 1 2 3
userfile=~/casestudies/login_users

  clear
  tput cup 1 4; echo "User Accounts Addition"
  tput cup 2 4; echo "======================="
  tput cup 4 4; echo "Username : "
  tput cup 5 4; echo "Password : "
  tput cup 6 4; echo "Answer the following questions in case of password recovery"
  tput cup 7 2; echo "A. What is your 5th favorite color? "
  tput cup 8 2; echo "B. What is your favorite food? "
  tput cup 9 2; echo "C. What is the name of your pet? "
  tput cup 10 2; echo "D. What is the middle name of your mother's maiden name? "
  tput cup 11 2; echo "E. What is the model number of your laptop/monitor? "
  
  tput cup 4 18; read username
  tput cup 5 18; read passwd
  tput cup 7 18; read A
  tput cup 8 18; read B
  tput cup 9 18; read C
  tput cup 10 18; read D
  tput cup 11 18; read E    
# Check to see if username is not blank before you
#write to disk
  if [ "$username" > "           " ] 
  then echo "$username:$passwd:$A:$B:$C:$D:$E" >> $userfile 
  fi
  tput cup 13 10; echo "(q)uit: "
  tput cup 13 10; read choice
  if [ "$choice" = "q" ]
    then 
      clear; exit   
  fi

#============================================================
#  Script Name:   userlist
#  By:            JRG
#  Date:          March 5, 2011
#  Purpose:       Use awk to format colon-separated fields
#          in a flat file and display to the screen
#  Command Line:  userlist
#===========================================================
clear
  tput cup 2 4; echo "User List"
  tput cup 3 4; echo "========="
  tput cup 5 0; echo "P - Print User List"
  awk -F: '{printf "%-12s %-12s %s\t%s %s %10.10s %s\n", $2, $3, $4, $1, $5, $6, $7}' login_users

#============================================================
#  Script Name:   profile
#  By:            JRG
#  Date:          March 5, 2011
#  Purpose:       main menu 
#  Command Line:  profile
#===========================================================
profile=~/casestudies/users
loop=y
while [ "$loop" = y ]
do
  clear
  tput cup 3 12; echo "  Welcome to your profile  "
  tput cup 4 12; echo "==========================="
  tput cup 6 9; echo "What do you want to do? "
  tput cup 7 9; echo "C - create an account"
  tput cup 8 9; echo "L - Login"
  tput cup 9 9; echo "F - Forgot password"
  tput cup 10 9; echo "Q - Quit"
   read choice || continue
     case $choice in
       [Cc]) ./useradd;;
       [Ll]) ./login1 ;;
       [Ff]) ./forgotpass;;
       [Qq]) exit ;;
        *) tput cup 13 4; echo "Invalid Code"; read choice ;;
     esac
done