"Hello Ubuntu" in every programming language

**samjh** · July 10th, 2007

List made by pp., posted by LaRoza

================================================== ================================================== ===

I've just been inspired by a webpage with 193 examples of "Hello World!" programs.

I want to make something a just slightly more useful for the beginning programmer.

Write the most concise, but clearly readable program (call it helloubuntu) according to this specification:

Say: "Hi! What's your name? "
User enters name.
Say: "Hello, (username)! Welcome to Ubuntu!"

You can also use a simple GUI, like a dialog box, to ask the question, input name, etc. Just make sure the code is elegant and easy-to-understand.

You can use programming languages, markup languages, shell scripts, or even SQL statements.

Try not to hog too many languages. Give other posters a fair go at posting their example too. If you are posting an alternative version of code for a language that has already been posted, mention that it is an alternative version.

I'll start off:

Ada (using normal fixed-length string)

Code:

with Ada.Text_IO;

use Ada.Text_IO;

procedure helloubuntu is
	username : String(1..30);
	lastchar : Integer;
begin
	Put_Line("Hi!  What's your name?");
	Get_Line(username, lastchar);
	Put_Line("Hello, " & username(1..lastchar) & "!  Welcome to Ubuntu!");
end helloubuntu;

Ada (using the 2005 standard's unbounded-string)

Code:

with Ada.Text_IO, Ada.Text_IO.Unbounded_IO, Ada.Strings.Unbounded;

use Ada.Text_IO, Ada.Text_IO.Unbounded_IO, Ada.Strings.Unbounded;

procedure helloubuntu is
	username : Unbounded_String;
begin
	Put("Hi!  What's your name? ");
	Get_Line(username);
	Put_Line("Hello, " & username & "!  Welcome to Ubuntu!");
end helloubuntu;

Can we beat 193?

**desijays** · July 10th, 2007

BASH

Code:

echo -n "Hi whats your name? "
read name
echo "Hello $name. Welcome to Ubuntu"

**Note360** · July 10th, 2007

C

runningwithscissors came up with a better one. So here it is.

Code:

#include <stdio.h>

int main()
{
        char name[64];
        printf("Hi! What's your name? ");
        scanf("%s", &name);
        printf("Hello, %s! Welcome to Ubuntu (GNU)/Linux!\n", &name);

        return 0;
}

That is my really bad C one. Please criticize me via PM if you feel the need.

**robheus** · May 25th, 2008

Originally Posted by Note360

C

runningwithscissors came up with a better one. So here it is.

Code:

#include <stdio.h>

int main()
{
        char name[64];
        printf("Hi! What's your name? ");
        scanf("%s", &name);
        printf("Hello, %s! Welcome to Ubuntu (GNU)/Linux!\n", &name);

        return 0;
}

That is my really bad C one. Please criticize me via PM if you feel the need.

Small mistake: you used

Code:

&name

for the string to print, but that is incorrect, as it takes the adress-of the string array, not the array itself. So it needs to read:

Code:

#include <stdio.h>

int main()
{
        char name[64];
        printf("Hi! What's your name? ");
        scanf("%s", name);
        printf("Hello, %s! Welcome to Ubuntu (GNU)/Linux!\n", name);

        return 0;
}

(or alternatively: &name[0])

**bulldog060** · July 10th, 2007

Perl

Code:

Code:

#!/usr/bin/perl

use strict;

print "Hi, What is your name? ";
chomp( my $name = <STDIN> );
$name = ucfirst(lc($name)); # make "name" -> "Name"
print "Hello $name, Welcome to Ubuntu!\n";

Result:

Code:

[{bulldog}~]$./name.pl
Hi, What is your name? bULlDoG
Hello Bulldog, Welcome to Ubuntu!
[{bulldog}~]$

* Side note http://www.99-bottles-of-beer.net/ has examples of `99 Bottle of Beer' in every language that I can think of ( and alot that I couldn't ) ... Gives beginners some experience with conditionals and loops as well

**james2vegas** · August 20th, 2012

Code:

#!/usr/bin/perl
use strict;
use ExtUtils::MakeMaker qw/prompt/;

my $name = prompt("Hi, What is your name?");

print "Hello \L\u$name\E, Welcome to Ubuntu!\n";

Result:

Code:

[{bulldog}~]$./name.pl
Hi, What is your name? bULlDoG
Hello Bulldog, Welcome to Ubuntu!
[{bulldog}~]$

**Wybiral** · July 10th, 2007

NASM Assembly (i386)

It could be cleaner and more optimized, I was trying to make it easy to follow.

The command to assemble & link is at the top.

Code:

; nasm helloubuntu.asm -f elf && ld helloubuntu.o -o helloubuntu

section .bss
    name resb 512

segment .text 
    ; Constant data:
    intro      db   "Hi! What's you're name? "
    sz_intro   equ  $-intro
    outro1     db   "Hello "
    sz_outro1  equ  $-outro1
    outro2     db   "! Welcome to Ubuntu!", 10
    sz_outro2  equ  $-outro2
    global _start

; Console in system call
console_in:
    mov eax, 3
    mov ebx, 0
    int 0x80
ret

; Console out system call
console_out:
    mov eax, 4
    mov ebx, 1
    int 0x80
ret

; Find first newline in input
get_len:
    mov edx, 0
    get_len_loop:
        inc edx
        cmp byte [name+edx], 10
    jne get_len_loop
ret

; Start, equivalent to C's "main"
_start:
    mov ecx, intro
    mov edx, sz_intro
    call console_out

    mov ecx, name
    mov edx, 512
    call console_in

    mov ecx, outro1
    mov edx, sz_outro1
    call console_out

    mov ecx, name
    call get_len
    call console_out

    mov ecx, outro2
    mov edx, sz_outro2
    call console_out

    ; System exit call
    mov eax, 1
    int 0x80

**jimi_hendrix** · January 4th, 2009

HLA (high level asm) (not checked yet due to lack of assembler but i will do it soon)

Code:

program hello;
#include(stdlib.hhf);
begin hello;
	stdout.put("What is your name?" nl); //this is a comment, nl means new line
	stdin.get(eax);
	sotdout.put("Hello" eax "welcome to Ubuntu!);
end hello;

**runningwithscissors** · July 10th, 2007

Python

Code:

#!/usr/bin/env python
print "Hello, " + raw_input("Hi! What's your name? ") + "! Welcome to Ubuntu!"

**holihue** · October 15th, 2007

Originally Posted by runningwithscissors

Python

Code:

#!/usr/bin/env python
print "Hello, " + raw_input("Hi! What's your name? ") + "! Welcome to Ubuntu!"

In Python 3.0:

Code:

print("string")
not print "string"

Python 3.0 is the new version in python, not released yet.(only alpha)

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