Login Security System in Perl

I wrote this simple login security system using Perl programming language to ask the user to give a username and password and check if the username and password is correct or not.

I am currently accepting programming work inventory system, enrollment system, accounting system, payroll system, information system, website design and development using WordPress, IT projects, school and application development, programming projects, thesis, and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me in the following email address for further details. If you want to advertise on my website kindly contact me also in my email address also. Thank you.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental Philippines is +63 (034) 4335675.

Here in Bacolod City, Negros Occidental I also accepting computer repair, web development using WordPress, Computer Networking and Arduino Project development at a very affordable price.

My personal website is http://www.jakerpomperada.com

My programming website is http://www.jakerpomperada.blogspot.com

I am also a book author you can purchase my books on computer programming and information technology in the following links below.

https://www.mindshaperspublishing.com/

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Program Listing

# login_string.pl
# Author   : Jake R. Pomperada,MAED-IT,MIT
# Date     : April 8, 2020   Wednesday  7;40 PM
# Location : Bacolod City, Negros Occidental
# Email    : jakerpomperada@gmail.com
# Website  : http://www.jakerpomperada.com

    back:
    print("\n\n");
    print("\tLogin Security System in Perl");
    print("\n\n");
  
    print("\tEnter Your Username  : ");
    chomp($username=<STDIN>);
    
    print("\tEnter Your Password  : ");
    chomp($password=<STDIN>);
    
    $user_check = lc $username;
    $pass_check = lc $password;

    if  ($user_check eq "admin"  && $pass_check eq "123") {
        print("\n\n");
        printf("\tPassword is accepted. Welcome to the system.")
    } else
      {
          print("\n\n");
          printf("\tInvalid Password. Try Again.");
          print("\n\n");
          goto back;
      }
    print("\n\n");
    print("\t\tEnd of Program");

    print("\n\n");