View source for Hello world/Standard error

{{task|Basic language learning}} 
{{selection|Short Circuit|Console Program Basics}}
[[Category:Streams]]
{{omit from|Applesoft BASIC}}
{{omit from|bc|Always prints to standard output.}}
{{omit from|Brainf***}}
{{omit from|dc|Always prints to standard output.}}
{{omit from|EasyLang|EasyLang has an error variable, but it cannot be set manually. And it always prints to standard output.}}
{{omit from|GUISS|Cannot customize error messages}}
{{omit from|Integer BASIC}}
{{omit from|Jack|No other output stream available.}}
{{omit from|SQL PL|It only prints in standard output. There is no way to print in standard error. Not even with "BEGIN SIGNAL SQLSTATE 'ABCDE' SET MESSAGE_TEXT = 'Hello World!'; END"}} <!-- The only way is with an external function in Java or C that prints in Standard Error -->
{{omit from|TI-83 BASIC|Same reason as TI-89.}}
{{omit from|TI-89 BASIC|no analogue to stderr, unless you count graph display vs. program IO}}
{{omit from|Unlambda|No concept of standard error (or alternate output streams in general).}}

A common practice in computing is to send error messages 
to a different output stream than [[User Output - text|normal text console messages]]. 

The normal messages print to what is called "standard output" or "standard out". 

The error messages print to "standard error". 

This separation can be used to redirect error messages to a different place than normal messages.


;Task:
Show how to print a message to standard error by printing &nbsp; &nbsp; '''Goodbye, World!''' &nbsp; &nbsp; on that stream.
<br><br>

=={{header|11l}}==
{{trans|Python}}

<syntaxhighlight lang="11l">:stderr.write("Goodbye, World!\n")</syntaxhighlight>

=={{header|4DOS Batch}}==
<syntaxhighlight lang="4dos">echoerr Goodbye, World!</syntaxhighlight>

=={{header|AArch64 Assembly}}==
<syntaxhighlight lang="arm_assembly">.equ STDERR, 2
.equ SVC_WRITE, 64
.equ SVC_EXIT, 93

.text
.global _start

_start:
	stp x29, x30, [sp, -16]!
	mov x0, #STDERR
	ldr x1, =msg
	mov x2, 15
	mov x8, #SVC_WRITE
	mov x29, sp
	svc #0 // write(stderr, msg, 15);
	ldp x29, x30, [sp], 16
	mov x0, #0
	mov x8, #SVC_EXIT
	svc #0 // exit(0);

msg:	.ascii "Goodbye World!\n"</syntaxhighlight>

=={{header|Ada}}==
<syntaxhighlight lang="ada">with Ada.Text_IO;  use Ada.Text_IO;

procedure Goodbye_World is
begin
   Put_Line (Standard_Error, "Goodbye, World!");
end Goodbye_World;</syntaxhighlight>

=={{header|Agena}}==
<syntaxhighlight lang="agena">io.write( io.stderr, "Goodbye, World!\n" )</syntaxhighlight>

=={{header|Aime}}==
<syntaxhighlight lang="aime">v_text("Goodbye, World!\n");</syntaxhighlight>

=={{header|ALGOL 68}}==
The procedures <tt>print</tt> and <tt>printf</tt> output to ''stand out'', 
whereas <tt>put</tt> and <tt>putf</tt> can output to any open '''file''', including ''stand error''.

{{works with|ALGOL 68|Revision 1 - no extensions to language used}}

{{works with|ALGOL 68G|Any - tested with release [http://sourceforge.net/projects/algol68/files/algol68g/algol68g-1.18.0/algol68g-1.18.0-9h.tiny.el5.centos.fc11.i386.rpm/download 1.18.0-9h.tiny]}}

{{works with|ELLA ALGOL 68|Any (with appropriate job cards) - tested with release [http://sourceforge.net/projects/algol68/files/algol68toc/algol68toc-1.8.8d/algol68toc-1.8-8d.fc9.i386.rpm/download 1.8-8d] - note that printf and putf were not ported into ELLA's libraries.}}
<syntaxhighlight lang="algol68">main:(
  put(stand error, ("Goodbye, World!", new line))
)</syntaxhighlight>
{{out}}
<pre>
Goodbye, World!
</pre>

=={{header|Argile}}==
<syntaxhighlight lang="argile">use std
eprint "Goodbye, World!"</syntaxhighlight>
or
<syntaxhighlight lang="argile">use std
eprintf "Goodbye, World!\n"</syntaxhighlight>
or
<syntaxhighlight lang="argile">use std
fprintf stderr "Goodbye, World!\n"</syntaxhighlight>

=={{header|ARM Assembly}}==
{{works with|as|Raspberry Pi}}

<syntaxhighlight lang="arm assembly">
/* ARM assembly Raspberry PI  */
/*  program hellowordLP.s   */
.data
szMessage: .asciz "Goodbye world. \n "       @ error message
.equ LGMESSAGE, . -  szMessage  @ compute length of message

.text
.global main 
main:	
    mov r0, #2                  @ output error linux
    ldr r1, iAdrMessage         @ adresse of message
    mov r2, #LGMESSAGE          @ sizeof(message) 
    mov r7, #4                  @ select system call 'write' 
    swi #0                      @ perform the system call 
 
    mov r0, #0                  @ return code
    mov r7, #1                  @ request to exit program
    swi #0                       @ perform the system call
iAdrMessage: .int szMessage

</syntaxhighlight>

=={{header|Arturo}}==
<syntaxhighlight lang="arturo">panic "Goodbye, World!"</syntaxhighlight>

=={{header|ATS}}==
<syntaxhighlight lang="ats">implement main0 () = fprint (stderr_ref, "Goodbye, World!\n")</syntaxhighlight>

=={{header|AutoHotkey}}==
requires [http://github.com/tinku99/ahkdll/tree/master AutoHotkey_N]
implementation. 
<syntaxhighlight lang="autohotkey">; c:\>  autohotkey.exe stderr.ahk 2> error.txt
FileAppend, Goodbye`, World!, stderr   ; requires AutoHotkey_N</syntaxhighlight>

Or with the current AutoHotkey_L:
{{works with|AutoHotkey_L}}
(documentation on this behavior: http://www.autohotkey.net/~Lexikos/AutoHotkey_L/docs/commands/FileAppend.htm)
<syntaxhighlight lang="autohotkey">FileAppend, Goodbye`, World!, *</syntaxhighlight>

=={{header|AutoIt}}==
<syntaxhighlight lang="autoit">ConsoleWriteError("Goodbye, World!" & @CRLF)</syntaxhighlight>

=={{header|Avail}}==
<syntaxhighlight lang="avail">Error: "Goodbye, World!";</syntaxhighlight>

=={{header|AWK}}==
To print a message to standard error,
pipe it through a shell command:

<syntaxhighlight lang="awk">BEGIN {
  print "Goodbye, World!"| "cat 1>&2"
}</syntaxhighlight>

Or write to /dev/stderr:

{{works with|gawk}}
{{works with|mawk}}
{{works with|nawk}}
<syntaxhighlight lang="awk">BEGIN {
  print "Goodbye, World!" > "/dev/stderr"
}</syntaxhighlight>

With ''gawk'', ''mawk'' and ''nawk'': a special feature 
associates "/dev/stderr" with standard error. 
The manuals of ''gawk'' and ''mawk'' describe this feature; 
''nawk'' also has this feature.

Other implementations might try to open /dev/stderr as a file. 
Some Unix clones, like [[BSD]], have a /dev/stderr device node 
that duplicates standard error, so this code would still work. 
Some systems have no such device node, so this code would fail. 
We recommend "cat 1>&2", which is more portable, and works with any Unix clone.

=={{header|BASIC}}==
==={{header|Applesoft BASIC}}===
<syntaxhighlight lang="basic">REM FILE-BASED OUTPUT REDIRECTION
 0 D$ =  CHR$ (4):F$ = "DEV/STDERR": PRINT D$"OPEN"F$: PRINT D$"CLOSE"F$: PRINT D$"APPEND"F$: PRINT D$"WRITE"F$
 1  PRINT "GOODBYE, WORLD!"
 2  PRINT D$"CLOSE"F$</syntaxhighlight><syntaxhighlight lang="basic">REM OUTPUT ROUTINE REDIRECTION
 3  FOR I = 768 TO 802: READ B: POKE I,B: NEXT : POKE 54,0: POKE 55,3: CALL 1002: DATA 72,173,34,3,208,8,169,191,141,34,3,32,240,253,104,201,141,208,12,169,0,141,34,3,169,135,32,240,253,169,141,76,240,253,0
 4 O$ =  CHR$ (111):D$ =  CHR$ (100): PRINT "G" + O$ + O$ + D$ +  CHR$ (98) +  CHR$ (121) +  CHR$ (101) + ", W" + O$ +  CHR$ (114) +  CHR$ (108) + D$ + "!"
 5  POKE 54,240: POKE 55,253: CALL 1002</syntaxhighlight>
==={{header|BaCon}}===
<syntaxhighlight lang="freebasic">EPRINT "Goodbye, World!"</syntaxhighlight>

==={{header|BASIC256}}===
<syntaxhighlight lang="basic256">onerror errortrap
throwerror 99
end

errortrap:
print "Goodbye World!"
return</syntaxhighlight>

==={{header|Chipmunk Basic}}===
{{works with|Chipmunk Basic|3.6.4}}
<syntaxhighlight lang="qbasic">10 cls
20 on error goto 50
30 error 99 : we force an error
40 end
50 rem ManejoErrores
60 print "Goodbye World!"
70 cont</syntaxhighlight>

==={{header|QBasic}}===
<syntaxhighlight lang="basic">ON ERROR GOTO ManejoErrores
ERROR 99
END

ManejoErrores:
  PRINT "Googbye World!"
  RESUME</syntaxhighlight>

==={{header|ZX Spectrum Basic}}===
On the ZX Spectrum, standard error is on stream 1:

<syntaxhighlight lang="zxbasic">10 PRINT #1;"Goodbye, World!"
20 PAUSE 50: REM allow time for the user to see the error message</syntaxhighlight>

=={{header|Batch File}}==
<syntaxhighlight lang="dos">1>&2 echo Goodbye, World!</syntaxhighlight>
The redirection operator <code>1>&2</code> causes all output on stream 1 (standard out) to be redirected to stream 2 (standard error). 
The redirection can be moved to the end of the line, too.

=={{header|BBC BASIC}}==
{{works with|BBC BASIC for Windows}}
The program must be compiled as a console application for this to work.
<syntaxhighlight lang="bbcbasic">      STD_ERROR_HANDLE = -12
      SYS "GetStdHandle", STD_ERROR_HANDLE TO @hfile%(1)
      PRINT #13, "Goodbye, World!"
      QUIT</syntaxhighlight>

=={{header|Blade}}==
<syntaxhighlight lang="blade">import io
io.stderr.write('Goodbye, World!')</syntaxhighlight>

=={{header|C}}==
Unlike puts(), fputs() does not append a terminal newline.
<syntaxhighlight lang="c">#include <stdio.h>

int main()
{
	fprintf(stderr, "Goodbye, ");
	fputs("World!\n", stderr);

	return 0;
}</syntaxhighlight>

=={{header|C sharp|C#}}==
<syntaxhighlight lang="csharp">static class StdErr
{
    static void Main(string[] args)
    {
        Console.Error.WriteLine("Goodbye, World!");
    }
}</syntaxhighlight>

=={{header|C++}}==
<syntaxhighlight lang="cpp">#include <iostream>

int main() {
  std::cerr << "Goodbye, World!\n";
}</syntaxhighlight>

=={{header|Clojure}}==
<syntaxhighlight lang="lisp">(binding [*out* *err*]
  (println "Goodbye, world!"))</syntaxhighlight>

=={{header|CLU}}==
<syntaxhighlight lang="clu">start_up = proc ()
    stream$putl(stream$error_output(), "Goodbye, World!")
end start_up</syntaxhighlight>

=={{header|CMake}}==
Most messages go to standard error.

<syntaxhighlight lang="cmake">message("Goodbye, World!")</syntaxhighlight>

The message cannot be a keyword; <code>message("STATUS")</code> never prints "STATUS", but <code>message("" "STATUS")</code> does work.

=={{header|COBOL}}==
Using fixed format.
{{works with|OpenCOBOL}}

<syntaxhighlight lang="cobol">	program-id. ehello.
	procedure division.
		display "Goodbye, world!"  upon syserr.
		stop run.</syntaxhighlight>

=={{header|CoffeeScript}}==
{{trans|JavaScript}}
{{works with|Node.js}}
<syntaxhighlight lang="coffeescript">console.warn "Goodbye, World!"</syntaxhighlight>

=={{header|Common Lisp}}==
<syntaxhighlight lang="lisp">(format *error-output* "Goodbye, world!~%")</syntaxhighlight>

=={{header|D}}==
<syntaxhighlight lang="d">import std.stdio;

void main () {
    stderr.writeln("Goodbye, World!");
}</syntaxhighlight>
===Alternative Version===
{{libheader|tango}}

<syntaxhighlight lang="d">import tango.io.Stdout;

void main () {
    Stderr("Goodbye, World!").newline;
}</syntaxhighlight>

=={{header|Dart}}==
<syntaxhighlight lang="dart">import 'dart:io';

void main() {
  stderr.writeln('Goodbye, World!');
}</syntaxhighlight>

=={{header|Delphi}}==
<syntaxhighlight lang="delphi">program Project1;

{$APPTYPE CONSOLE}

begin
  WriteLn(ErrOutput, 'Goodbye, World!');
end.</syntaxhighlight>

=={{header|dt}}==
<syntaxhighlight lang="dt">"Goodbye, World!" epl</syntaxhighlight>

=={{header|Dylan.NET}}==

{{works with|Mono|2.6.7}}
{{works with|Mono|2.10.x}}
{{works with|Mono|3.x.y}}
{{works with|.NET|3.5}}
{{works with|.NET|4.0}}
{{works with|.NET|4.5}}
One Line version:
<syntaxhighlight lang="dylan.net">Console::get_Error()::WriteLine("Goodbye World!")</syntaxhighlight>
Goodbye World Program:
<syntaxhighlight lang="dylan.net">
//compile using the new dylan.NET v, 11.5.1.2 or later
//use mono to run the compiler
#refstdasm mscorlib.dll

import System

assembly stderrex exe
ver 1.1.0.0

class public Program

   method public static void main()
      Console::get_Error()::WriteLine("Goodbye World!")
   end method

end class
</syntaxhighlight>

=={{header|Déjà Vu}}==
<syntaxhighlight lang="dejavu">!write-fragment!stderr !encode!utf-8 "Goodbye, World!\n"</syntaxhighlight>

=={{header|E}}==

<syntaxhighlight lang="e">stderr.println("Goodbye, World!")</syntaxhighlight>

=={{header|Elixir}}==
<syntaxhighlight lang="elixir">IO.puts :stderr, "Goodbye, World!"</syntaxhighlight>

=={{header|Emacs Lisp}}==

In batch mode, <code>message</code> actually prints to standard error:

<syntaxhighlight lang="lisp">(message "Goodbye, World!")</syntaxhighlight>

For greater control, <code>princ</code> can be used with a special printing function:

<syntaxhighlight lang="lisp">(princ "Goodbye, World!\n" 'external-debugging-output)</syntaxhighlight>

=={{header|EMal}}==
<syntaxhighlight lang="emal">logLine("Goodbye, World!")</syntaxhighlight>
<syntaxhighlight lang="emal">log("Goodbye, World!")</syntaxhighlight>

=={{header|Erlang}}==
<syntaxhighlight lang="erlang">io:put_chars(standard_error, "Goodbye, World!\n").</syntaxhighlight>

=={{header|Euphoria}}==
<syntaxhighlight lang="euphoria">puts(2,"Goodbye, world!\n") -- 2 means output to 'standard error'</syntaxhighlight>

=={{header|F_Sharp|F#}}==
<syntaxhighlight lang="fsharp">eprintfn "%s" "Goodbye, World!"</syntaxhighlight>
or you can use the .Net classes
<syntaxhighlight lang="fsharp">System.Console.Error.WriteLine("Goodbye, World!");</syntaxhighlight>

=={{header|Factor}}==
Start Factor in a terminal for this:
<syntaxhighlight lang="factor">error-stream get [ "Goodbye, World! bbl, crashing" print flush ] with-output-stream*</syntaxhighlight>

=={{header|Fantom}}==

<syntaxhighlight lang="fantom">
class Main
{
  public static Void main ()
  {
    Env.cur.err.printLine ("Goodbye, World!")
  }
}
</syntaxhighlight>

=={{header|Forth}}==
{{works with|GNU Forth}}
<syntaxhighlight lang="forth">outfile-id
  stderr to outfile-id
  ." Goodbye, World!" cr
to outfile-id</syntaxhighlight>

=={{header|Fortran}}==

Normally standard error is associated with the unit 0 
but this could be different for different vendors. 
Therefore since Fortran 2003 there's an intrinsic module 
which defines the parameter ERROR_UNIT.

<syntaxhighlight lang="fortran">program StdErr
  ! Fortran 2003
  use iso_fortran_env

  ! in case there's no module iso_fortran_env ...
  !integer, parameter :: ERROR_UNIT = 0
  
  write (ERROR_UNIT, *) "Goodbye, World!"
end program StdErr</syntaxhighlight>

=={{header|FreeBASIC}}==
<syntaxhighlight lang="freebasic">' FB 1.05.0 Win64

Open Err As #1
Print #1, "Goodbye World!"
Close #1
Sleep</syntaxhighlight>

=={{header|Frink}}==
<syntaxhighlight lang="frink">
staticJava["java.lang.System","err"].println["Goodbye, World!"]
</syntaxhighlight>

=={{header|Genie}}==
<syntaxhighlight lang="genie">[indent=4]
/*
  Hello, to Standard error, in Genie
  valac helloStderr.gs
*/

init
    stderr.printf("%s\n", "Goodbye, World!")</syntaxhighlight>

{{out}}
<pre>prompt$ ./helloStderr | wc
Goodbye, World!
      0       0       0</pre>

=={{header|Go}}==
Built in println now goes to stderr.
<syntaxhighlight lang="go">package main
func main() { println("Goodbye, World!") }</syntaxhighlight>
but the builtin print() and println() functions are not guaranteed to stay in the language. So you should probably use
<syntaxhighlight lang="go">package main
import ("fmt"; "os")
func main() { fmt.Fprintln(os.Stderr, "Goodbye, World!") }</syntaxhighlight>

=={{header|Groovy}}==
<syntaxhighlight lang="groovy">System.err.println("Goodbye, World!")</syntaxhighlight>

=={{header|Haskell}}==
<syntaxhighlight lang="haskell">import System.IO
main = hPutStrLn stderr "Goodbye, World!"</syntaxhighlight>

=={{header|Huginn}}==
<syntaxhighlight lang="huginn">#! /bin/sh
exec huginn --no-argv -E "${0}" "${@}"
#! huginn

import OperatingSystem as os;

main() {
	os.stderr().write( "Goodbye, World!\n" );
	return ( 0 );
}</syntaxhighlight>

=={{header|Icon}} and {{header|Unicon}}==
<syntaxhighlight lang="icon">procedure main()
  write(&errout, "Goodbye World" )
end</syntaxhighlight>

=={{header|J}}==
<syntaxhighlight lang="j">   stderr
1!:2&5

   0 0 $ stderr 'Goodbye, World!'</syntaxhighlight>

=={{header|Java}}==
<syntaxhighlight lang="java">public class Err{
   public static void main(String[] args){
      System.err.println("Goodbye, World!");
   }
}</syntaxhighlight>

=={{header|JavaScript}}==
{{works with|JScript}} and only with <code>cscript.exe</code>
<syntaxhighlight lang="javascript">WScript.StdErr.WriteLine("Goodbye, World!");</syntaxhighlight>

{{works with|Node.js}}
<syntaxhighlight lang="javascript">console.warn("Goodbye, World!")</syntaxhighlight>

{{works with|Firefox}}
<syntaxhighlight lang="javascript">console.error("Goodbye, World!")//only works if console object exists</syntaxhighlight>
OR
<syntaxhighlight lang="javascript">throw new Error("Goodbye, World!")//Should work in any browser</syntaxhighlight>

=={{header|Joy}}==
<syntaxhighlight lang="joy">stderr "Goodbye, World!\n" fputchars pop.</syntaxhighlight>

=={{header|jq}}==
<syntaxhighlight lang="jq">jq -n —-arg s 'Goodbye, World!' '$s | stderr | empty'</syntaxhighlight>
`stderr` copies its input to STDERR before passing it along the pipeline, and hence the occurrence of `empty` above.

=={{header|Julia}}==

Julia 0.7 or newer:

<syntaxhighlight lang="julia">println(stderr, "Goodbye, World!")</syntaxhighlight>

In versions prior to Julia 0.7, the standard I/O streams were capitalized:

<syntaxhighlight lang="julia">println(STDERR, "Goodbye, World!")</syntaxhighlight>

=={{header|Kotlin}}==
<syntaxhighlight lang="scala">fun main(args: Array<String>) {
    System.err.println("Goodbye, World!")
}</syntaxhighlight>

=={{header|Lang}}==
<syntaxhighlight lang="lang">fn.errorln(Goodbye, World!)</syntaxhighlight>

=={{header|langur}}==
<syntaxhighlight lang="langur">writelnErr "Goodbye, world."</syntaxhighlight>

=={{header|Lasso}}==
<syntaxhighlight lang="lasso">define stderr(s::string) => {
    file_stderr->writeBytes(#s->asBytes)
}

stderr('Goodbye, World!')</syntaxhighlight>

=={{header|Lingo}}==
*Windows:
{{libheader|CommandLine Xtra}}
<syntaxhighlight lang="lingo">-- print to standard error
stdErr("Goodbye, World!", TRUE)

-- print to the Windows debug console (shown in realtime e.g. in Systernal's DebugView)
dbgPrint("Goodbye, World!")</syntaxhighlight>

*Mac OS X:
{{libheader|Shell Xtra}}
<syntaxhighlight lang="lingo">sx = xtra("Shell").new()

-- print to standard error
sx.shell_cmd("echo Goodbye, World!>&2")

-- print to system.log (shown in realtime e.g. in Konsole.app)
sx.shell_cmd("logger Goodbye, World!")</syntaxhighlight>

=={{header|Lean}}==
In lean4
<syntaxhighlight lang="lean4">
def main : IO Unit := do
  let stderr ← IO.getStderr
  stderr.putStrLn s!"Goodbye, World!"
</syntaxhighlight>
=={{header|LLVM}}==
<syntaxhighlight lang="llvm">; This is not strictly LLVM, as it uses the C library function "printf".
; LLVM does not provide a way to print values, so the alternative would be
; to just load the string into memory, and that would be boring.

; Additional comments have been inserted, as well as changes made from the output produced by clang such as putting more meaningful labels for the jumps

%struct._iobuf = type { i8* }

$"message" = comdat any
@"message" = linkonce_odr unnamed_addr constant [17 x i8] c"Goodbye, world!\0A\00", comdat, align 1

;-- For discovering stderr (io pipe 2)
declare %struct._iobuf* @__acrt_iob_func(i32)

;--- The declaration for the external C fprintf function.
declare i32 @fprintf(%struct._iobuf*, i8*, ...)

define i32 @main() {
;-- load stderr
  %1 = call %struct._iobuf* @__acrt_iob_func(i32 2)
;-- print the message to stderr with fprintf
  %2 = call i32 (%struct._iobuf*, i8*, ...) @fprintf(%struct._iobuf* %1, i8* getelementptr inbounds ([17 x i8], [17 x i8]* @"message", i32 0, i32 0))
;-- exit
  ret i32 0
}</syntaxhighlight>
{{out}}
<pre>Goodbye, world!</pre>

=={{header|Logtalk}}==
The stream alias "user_error" can be used to print to the "standard error" stream.
<syntaxhighlight lang="logtalk">
:- object(error_message).

    % the initialization/1 directive argument is automatically executed
    % when the object is compiled and loaded into memory:
    :- initialization(write(user_error, 'Goodbye, World!\n')).

:- end_object.
</syntaxhighlight>

=={{header|Lua}}==
<syntaxhighlight lang="lua">io.stderr:write("Goodbye, World!\n")</syntaxhighlight>

=={{header|m4}}==
<syntaxhighlight lang="m4">errprint(`Goodbye, World!
')dnl</syntaxhighlight>

=={{header|MANOOL}}==
<syntaxhighlight lang="manool">{{extern "manool.org.18/std/0.3/all"} in Err.WriteLine["Goodbye, World!"]}</syntaxhighlight>

=={{header|Maple}}==
<syntaxhighlight lang="maple">
error "Goodbye World"
</syntaxhighlight>

=={{header|Mathematica}} / {{header|Wolfram Language}}==
<syntaxhighlight lang="mathematica">Write[Streams["stderr"], "Goodbye, World!"]</syntaxhighlight>

=={{header|MATLAB}} / {{header|Octave}}==
This prints to standard error, and continues execution
<syntaxhighlight lang="matlab">fprintf(2,'Goodbye, World!')</syntaxhighlight>
This will not stop further execution, if called from within a script or function.
<syntaxhighlight lang="matlab">error 'Goodbye, World!'</syntaxhighlight>

=={{header|Mercury}}==
<syntaxhighlight lang="text">
:- module hello_error.
:- interface.

:- import_module io.
:- pred main(io::di, io::uo) is det.

:- implementation.

main(!IO) :-
    io.stderr_stream(Stderr, !IO),
    io.write_string(Stderr, "Goodbye, World!\n", !IO).
</syntaxhighlight>

=={{header|Metafont}}==
Metafont has no a real way to send a text to the standard output/error nor to a file. Anyway it exists the <code>errmessage</code> command which will output an error message and prompt the user for action (suspending the interpretation of the source).

<syntaxhighlight lang="metafont">errmessage "Error";
message "...going on..."; % if the user decides to go on and not to stop
                          % the program because of the error.</syntaxhighlight>

=={{header|min}}==
{{works with|min|0.37.0}}
Currently, ''min'' has three possibilities for outputting to stderr:
<syntaxhighlight lang="min">"Goodbye, World!" warn!
"Goodbye, World!" error!
"Goodbye, World!" fatal!</syntaxhighlight>
The first two depend on the current log level (and are enabled by default). The last one additionally terminates the program.

=={{header|ML/I}}==
<syntaxhighlight lang="ml/i">MCSET S4=1
MCNOTE Goodbye, World!</syntaxhighlight>

=={{header|Miranda}}==
<syntaxhighlight lang="miranda">main :: [sys_message]
main = [Stderr "Hello, world!\n"]</syntaxhighlight>

=={{header|Modula-2}}==
<syntaxhighlight lang="modula2">MODULE HelloErr;
IMPORT StdError;

BEGIN
  StdError.WriteString('Goodbye, World!');
  StdError.WriteLn
END HelloErr.</syntaxhighlight>

=={{header|Modula-3}}==
<syntaxhighlight lang="modula3">MODULE Stderr EXPORTS Main;

IMPORT Wr, Stdio;

BEGIN
  Wr.PutText(Stdio.stderr, "Goodbye, World!\n");
END Stderr.</syntaxhighlight>

=={{header|N/t/roff}}==

The request <code>.tm</code> prints whatever after it, until and including the newline character, to the standard error.  The string parsed to it need not be quoted and will never appear on standard output.

<syntaxhighlight lang="n/t/roff">
.tm Goodbye, World!
</syntaxhighlight>

=={{header|Neko}}==
<syntaxhighlight lang="actionscript">/**
  Hello world, to standard error, in Neko
  Tectonics:
    nekoc hello-stderr.neko
    neko hello-stderr
*/

/* Assume stderr is already open, just need write */
var file_write = $loader.loadprim("std@file_write", 4);

/* Load (and execute) the file_stderr primitive */
var stderr = $loader.loadprim("std@file_stderr", 0)();

file_write(stderr, "Goodbye, World!\n", 0, 16);</syntaxhighlight>

{{out}}
<pre>prompt$ nekoc hello-stderr.neko
prompt$ neko hello-stderr
Goodbye, World!
prompt$ neko hello-stderr 2>/dev/null
prompt$</pre>

=={{header|Nemerle}}==
<syntaxhighlight lang="nemerle">System.Console.Error.WriteLine("Goodbye, World!");</syntaxhighlight>

=={{header|NetRexx}}==
<syntaxhighlight lang="netrexx">/* NetRexx */

options replace format comments java crossref savelog symbols binary

System.err.println("Goodbye, World!")
</syntaxhighlight>

=={{header|Nim}}==
<syntaxhighlight lang="nim">stderr.writeLine "Hello World"</syntaxhighlight>

=={{header|Nu}}==
<syntaxhighlight lang="nu">
print -e "Goodbye, World!"
</syntaxhighlight>

=={{header|Oberon-2}}==
Oxford Oberon-2
<syntaxhighlight lang="oberon2">
MODULE HelloErr;
IMPORT Err;
BEGIN
	Err.String("Goodbye, World!");Err.Ln
END HelloErr.
</syntaxhighlight>
{{out}}
<pre>
Goodbye, World!
</pre>

=={{header|Objective-C}}==

{{Works with|GNUstep}}
{{Works with|Cocoa}}

In Objective-C one can use the standard C library and the stderr as in the C language; nonetheless a common way to output to stderr for logging purpose and/or error notification is the <tt>NSLog</tt> function, that works almost like <tt>fprintf(stderr, "...")</tt>, save for the fact that the format string 
is an NSString object, and it also prepends a timestamp.

<syntaxhighlight lang="objc">#import <Foundation/Foundation.h>

int main()
{
   fprintf(stderr, "Goodbye, World!\n");
   fputs("Goodbye, World!\n", stderr);
   NSLog(@"Goodbye, World!");
   return 0;
}</syntaxhighlight>

=={{header|OCaml}}==
<syntaxhighlight lang="ocaml">prerr_endline "Goodbye, World!";    (* this is how you print a string with newline to stderr *)
Printf.eprintf "Goodbye, World!\n"; (* this is how you would use printf with stderr *)</syntaxhighlight>

we can also use the ''out_channel'' '''stderr''':

<syntaxhighlight lang="ocaml">output_string stderr "Goodbye, World!\n";
Printf.fprintf stderr "Goodbye, World!\n";</syntaxhighlight>

finally the [http://caml.inria.fr/pub/docs/manual-ocaml/libref/Unix.html Unix] module also provides unbuffered write functions:

<syntaxhighlight lang="ocaml">let msg = "Goodbye, World!\n" in
ignore(Unix.write Unix.stderr msg 0 (String.length msg)) ;;</syntaxhighlight>

=={{header|Octave}}==
<syntaxhighlight lang="octave">fprintf(stderr, "Goodbye, World!\n");</syntaxhighlight>

=={{header|Oforth}}==
<syntaxhighlight lang="oforth">System.Err "Goodbye, World!" << cr</syntaxhighlight>

=={{header|Ol}}==
<syntaxhighlight lang="scheme">
(print-to stderr "Goodbye, World!")
</syntaxhighlight>

=={{header|ooRexx}}==
ooRexx provides a .error object that writes output to the standard error stream. 
<syntaxhighlight lang="oorexx">.error~lineout("Goodbye, World!")</syntaxhighlight>
The .error object is a proxy that delegates to a backing stream, so this might be redirected.  
By default, this delegates to the .stderr object, which can also be used directly. 
<syntaxhighlight lang="oorexx">.stderr~lineout("Goodbye, World!")</syntaxhighlight>
or in 'Classic REXX style'
<syntaxhighlight lang="oorexx">/* REXX ---------------------------------------------------------------
* 07.07.2014 Walter Pachl
* 12.07.2014 WP see Discussion where redirection from within the program is shown
*--------------------------------------------------------------------*/
Say 'rexx serr 2>err.txt directs the stderr output to the file err.txt'
Call lineout 'stderr','Good bye, world!'
Call lineout ,'Hello, world!'
Say 'and this is the error output:'
'type err.txt'            </syntaxhighlight>

=={{header|Oz}}==
<syntaxhighlight lang="oz">functor
import Application System
define
   {System.showError "Goodbye, World!"}
   {Application.exit 0}
end</syntaxhighlight>

=={{header|PARI/GP}}==
<syntaxhighlight lang="parigp">error("Goodbye, World!")</syntaxhighlight>

=={{header|Pascal}}==
{{Works with|Free Pascal}}
<syntaxhighlight lang="pascal">program byeworld;
 
begin
  writeln(StdErr, 'Goodbye, World!');
end.</syntaxhighlight>

=={{header|Perl}}==
<syntaxhighlight lang="perl">warn "Goodbye, World!\n";</syntaxhighlight>

Or:

<syntaxhighlight lang="perl">print STDERR "Goodbye, World!\n";</syntaxhighlight>

=={{header|Phix}}==
<!--<syntaxhighlight lang="phix">-->
 <span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">2</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"Goodbye, World!"</span><span style="color: #0000FF;">)</span>
<!--</syntaxhighlight>-->

=={{header|PHP}}==
<syntaxhighlight lang="php">fprintf(STDERR, "Goodbye, World!\n");</syntaxhighlight>
or
<syntaxhighlight lang="php">file_put_contents("php://stderr","Hello World!\n");</syntaxhighlight>

=={{header|Picat}}==
<syntaxhighlight lang="picat">println(stderr,"Goodbye, World!")</syntaxhighlight>

=={{header|PicoLisp}}==
<syntaxhighlight lang="picolisp">(out 2 (prinl "Goodbye, World!"))</syntaxhighlight>

=={{header|Pike}}==
<syntaxhighlight lang="pike">werror("Goodbye, World!");</syntaxhighlight>

=={{header|PL/I}}==
<syntaxhighlight lang="pl/i">display ('Goodbye, World');</syntaxhighlight>

=={{header|PostScript}}==
<syntaxhighlight lang="postscript">(%stderr) (w) file dup
(Goodbye, World!
) writestring
closefile</syntaxhighlight>

=={{header|PowerBASIC}}==
{{works with|PowerBASIC Console Compiler}}

<syntaxhighlight lang="powerbasic">STDERR "Goodbye, World!"</syntaxhighlight>

=={{header|PowerShell}}==
Since PowerShell has a slightly different system of pipes and streams 
(to facilitate easy usage from a host application) the 
standard Write-Error cmdlet is mainly for sending annotated error messages 
to the host:
<syntaxhighlight lang="powershell">Write-Error "Goodbye, World!"</syntaxhighlight>
Note that this outputs more than just the message, 
because behind the scenes it is an uncaught exception:
<pre>Write-Error "Goodbye, World!" : Goodbye, World!
    + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException</pre>
To accurately reproduce the behavior of other languages one has to resort to .NET in this case:
<syntaxhighlight lang="powershell">[Console]::Error.WriteLine("Goodbye, World!")</syntaxhighlight>

=={{header|PureBasic}}==

[http://www.purebasic.com/documentation/console/consoleerror.html ConsoleError()] writes the message string (plus a newline) to the standard error output of current program. 

Standard error output can be used in conjunction with [http://www.purebasic.com/documentation/process/readprogramerror.html ReadProgramError()] to reads a line from an other programs error output (stderr). 

<syntaxhighlight lang="purebasic">ConsoleError("Goodbye, World!")</syntaxhighlight>

=={{header|Python}}==
{{works with|Python|2.x}}
<syntaxhighlight lang="python">import sys

print >> sys.stderr, "Goodbye, World!"</syntaxhighlight>

{{works with|Python|3.x}}
<syntaxhighlight lang="python">import sys

print("Goodbye, World!", file=sys.stderr)</syntaxhighlight>

Works with either:
<syntaxhighlight lang="python">import sys

sys.stderr.write("Goodbye, World!\n")</syntaxhighlight>

=={{header|R}}==
<syntaxhighlight lang="r">cat("Goodbye, World!", file=stderr())</syntaxhighlight>

=={{header|Ra}}==
<syntaxhighlight lang="ra">
class HelloWorld
	**Prints "Goodbye, World!" to standard error**

	on start

		print to Console.error made !, "Goodbye, World!"
</syntaxhighlight>

=={{header|Racket}}==
<syntaxhighlight lang="racket">
(eprintf "Goodbye, World!\n")
</syntaxhighlight>

=={{header|Raku}}==
(formerly Perl 6)
<syntaxhighlight lang="raku" line>note "Goodbye, World!";</syntaxhighlight>

=={{header|Retro}}==
<syntaxhighlight lang="retro">'Goodbye,_World! '/dev/stderr file:spew</syntaxhighlight>

=={{header|REXX}}==
===version 1===
This version will work with those operating systems (hosts) 
that support stream output and a STDERR output 
<br>stream (by name).
<br>If the &nbsp; '''stderr''' &nbsp; name is supported and enabled, the output is written to the terminal.
<br>If not supported or disabled, the output is written to a (disk) file named &nbsp; '''STDERR'''.
<syntaxhighlight lang="rexx">call lineout 'STDERR', "Goodbye, World!"</syntaxhighlight>

===version 2===
Same as above, but uses a different style and also invokes &nbsp; '''charout''' &nbsp; instead of &nbsp; '''lineout'''.
<syntaxhighlight lang="rexx">msgText = 'Goodbye, World!'
call charout 'STDERR', msgText</syntaxhighlight>

===version 3===
This works on Windows 7 and ooRexx and REGINA
<syntaxhighlight lang="rexx">/* REXX ---------------------------------------------------------------
* 07.07.2014 Walter Pachl
* enter the appropriate command shown in a command prompt.
*    "rexx serr.rex 2>err.txt"
* or "regina serr.rex 2>err.txt" 
* 2>file will redirect the stderr stream to the specified file. 
* I don't know any other way to catch this stream
*--------------------------------------------------------------------*/
Parse Version v
Say v
Call lineout 'stderr','Good bye, world!'
Call lineout ,'Hello, world!'
Say 'and this is the error output:'
'type err.txt'</syntaxhighlight>

===version 4===
ARexx with tracing console
<syntaxhighlight lang="rexx">/**/
Address command tco
Call writeln stderr,'Good bye, world!'
Call writeln stdout,'Hello, world!'</syntaxhighlight>

=={{header|Ring}}==
<syntaxhighlight lang="ring">fputs(stderr,"Goodbye, World!")</syntaxhighlight>

=={{header|RPL}}==
There is no error console in RPL but all error messages are displayed at the top two lines of the display, which freezes until a key is pressed.
This can be mimicked with the <code>DISP</code> instruction:
 ≪ "Hello world!" 1 DISP ≫

=={{header|Ruby}}==
<syntaxhighlight lang="ruby">STDERR.puts "Goodbye, World!"</syntaxhighlight>
The following also works, unless you have disabled warnings (ruby command line option "-W0" or set <code>$VERBOSE=nil</code>)
<syntaxhighlight lang="ruby">warn "Goodbye, World!"</syntaxhighlight>

=={{header|Run BASIC}}==
<syntaxhighlight lang="runbasic">html "<script>
window.open('','error_msg','');
document.write('Goodbye, World!');
</script>""</syntaxhighlight>
Run Basic runs in a browser. 
This opens a new browser window, 
or a tab in the case of Chrome and some others.

=={{header|Rust}}==
<syntaxhighlight lang="rust">fn main() {
    eprintln!("Hello, {}!", "world");
}</syntaxhighlight>
or
<syntaxhighlight lang="rust">fn main() {
    use ::std::io::Write;
    let (stderr, errmsg) = (&mut ::std::io::stderr(), "Error writing to stderr");
    writeln!(stderr, "Bye, world!").expect(errmsg);
    
    let (goodbye, world) = ("Goodbye", "world");
    writeln!(stderr, "{}, {}!", goodbye, world).expect(errmsg);
}</syntaxhighlight>
or
<syntaxhighlight lang="rust">fn main() {
    use std::io::{self, Write};

    io::stderr().write(b"Goodbye, world!").expect("Could not write to stderr");
    // With some finagling, you can do a formatted string here as well
    let goodbye = "Goodbye";
    let world = "world";
    io::stderr().write(&*format!("{}, {}!", goodbye, world).as_bytes()).expect("Could not write to stderr");
    // Clearly, if you want formatted strings there's no reason not to just use writeln!
}</syntaxhighlight>

=={{header|S-lang}}==
<syntaxhighlight lang="s-lang">() = fputs("Goodbye, World!\n", stderr);</syntaxhighlight>

=={{header|Salmon}}==

<syntaxhighlight lang="salmon">
standard_error.print("Goodbye, World!\n");
</syntaxhighlight>

or

<syntaxhighlight lang="salmon">
include "short.salm";
stderr.print("Goodbye, World!\n");
</syntaxhighlight>

or

<syntaxhighlight lang="salmon">
include "shorter.salm";
err.print("Goodbye, World!\n");
</syntaxhighlight>
or

<syntaxhighlight lang="salmon">
include "shorter.salm";
se.print("Goodbye, World!\n");
</syntaxhighlight>

=={{header|Sather}}==
<syntaxhighlight lang="sather">class MAIN is
  main is
    #ERR + "Hello World!\n";
  end;
end;</syntaxhighlight>

=={{header|Scala}}==
{{libheader|Console}}

===Ad hoc REPL solution===
Ad hoc solution as [http://en.wikipedia.org/wiki/Read%E2%80%93eval%E2%80%93print_loop REPL] script:
<syntaxhighlight lang="scala">Console.err.println("Goodbye, World!")</syntaxhighlight>

===Via Java runtime===
This is a call to the Java run-time library. '''Not recommendated'''.
<syntaxhighlight lang="scala">System.err.println("Goodbye, World!")</syntaxhighlight>

===Via Scala Console API===
This is a call to the Scala API. '''Recommendated'''.
<syntaxhighlight lang="scala">Console.err.println("Goodbye, World!")</syntaxhighlight>

===Short term deviation to err===
<syntaxhighlight lang="scala">Console.withOut(Console.err) { println("This goes to default _err_") }</syntaxhighlight>

===Long term deviation to err===
<syntaxhighlight lang="scala">  println ("Out not deviated")
  Console.setOut(Console.err)
  println ("Out deviated")
  Console.setOut(Console.out) // Reset to normal</syntaxhighlight>

=={{header|Scheme}}==
<syntaxhighlight lang="scheme">(error "Goodbye, World!")</syntaxhighlight>

=={{header|Scilab}}==
<syntaxhighlight lang="scilab">error("Goodbye, World!")</syntaxhighlight>

=={{header|sed}}==
Requires <tt>/dev/stderr</tt>

<syntaxhighlight lang="sed">#n
1 {
	s/.*/Goodbye, World!/w /dev/stderr
}</syntaxhighlight>

This program requires at least 1 line of input. 
It changes the first line to "Goodbye, World!" 
and then prints the first line to standard error. 
It reads and ignores the remaining lines.

{{out|Test output}}
<syntaxhighlight lang="bash">$ echo a | sed -f error.sed >/dev/null
Goodbye, World!</syntaxhighlight>

=={{header|Seed7}}==
<syntaxhighlight lang="seed7">$ include "seed7_05.s7i";

const proc: main is func
  begin
    writeln(STD_ERR, "Goodbye, World!");
  end func;</syntaxhighlight>

=={{header|Sidef}}==
<syntaxhighlight lang="ruby">STDERR.println("Goodbye, World!");</syntaxhighlight>

=={{header|Slate}}==
<syntaxhighlight lang="slate">inform: 'Goodbye, World!' &target: DebugConsole.</syntaxhighlight>

=={{header|Slope}}==
<syntaxhighlight lang="slope">(write "Goodbye, world!" stderr)</syntaxhighlight>

=={{header|Smalltalk}}==
The details on to which name stderr is bound may vary between Smalltalk dialects. If different, a "Smalltalk at:#Stderr put:<name your stream here>" should provide compatibility.
<syntaxhighlight lang="smalltalk">Stderr nextPutAll: 'Goodbye, World!'</syntaxhighlight>

However, all Smalltalks provide a console named "Transcript", where diagnostics is usually sent to (which is convenient, if there is no stderr to look at, as when started in Windows as an exe, vs. a com).<br>Thus:
<syntaxhighlight lang="smalltalk">Transcript show: 'Goodbye, World!'</syntaxhighlight>

will work on all, and is the preferred way to do this.
<br>(and yes, when running UI-less as a console program, the global "Transcript" is usually bound to the stderr stream).

The above tells the stream to write a string;
you can also tell the string to print itself onto some stream:
<syntaxhighlight lang="smalltalk">'Goodbye, World!' printOn: Stderr</syntaxhighlight>
Both have the same effect.

=={{header|SNOBOL4}}==
<syntaxhighlight lang="snobol4">        terminal = "Error"
        output = "Normal text"
end</syntaxhighlight>

=={{header|Standard ML}}==
<syntaxhighlight lang="sml">TextIO.output (TextIO.stdErr, "Goodbye, World!\n")</syntaxhighlight>

=={{header|Swift}}==
<syntaxhighlight lang="swift">import Foundation

let out = NSOutputStream(toFileAtPath: "/dev/stderr", append: true)
let err = "Goodbye, World!".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
out?.open()
let success = out?.write(UnsafePointer<UInt8>(err!.bytes), maxLength: err!.length)
out?.close()

if let bytes = success {
    println("\nWrote \(bytes) bytes")
}</syntaxhighlight>
{{out}}
<pre>
Goodbye, World!
Wrote 15 bytes
</pre>

=={{header|Tcl}}==
<syntaxhighlight lang="tcl">puts stderr "Goodbye, World!"</syntaxhighlight>

=={{header|Transact-SQL}}==
<syntaxhighlight lang="transact-sql"> RAISERROR 'Goodbye, World!', 16, 1 </syntaxhighlight>

=={{header|True BASIC}}==
<syntaxhighlight lang="basic">
CAUSE error 1, "Goodbye World!"
END
</syntaxhighlight>

=={{header|TUSCRIPT}}==
<syntaxhighlight lang="tuscript">
$$ MODE TUSCRIPT
PRINT/ERROR "hello world"
text="goodbye world"
PRINT/ERROR text
</syntaxhighlight>
{{out}}
<pre>
@@@@@@@@  hello world                                                  @@@@@@@@
@@@@@@@@  goodbye world                                                @@@@@@@@
</pre>

=={{header|UNIX Shell}}==
{{works with|Bourne Shell}}
<syntaxhighlight lang="bash">echo "Goodbye, World!" >&2</syntaxhighlight>

==={{header|C Shell}}===
<syntaxhighlight lang="csh">echo "Goodbye, World!" >/dev/stderr</syntaxhighlight>

This requires <code>/dev/stderr</code>, a device node from [[BSD]] 
and some other Unix clones. 
This command works with both Bourne Shell and C Shell.

=={{header|Ursa}}==
<syntaxhighlight lang="ursa">out "goodbye, world!" endl console.err</syntaxhighlight>

=={{header|VBA}}==
<syntaxhighlight lang="vb">
Sub StandardError()
    Debug.Print "Goodbye World!"
End Sub
</syntaxhighlight>

=={{header|VBScript}}==
Must work in cscript.exe
<syntaxhighlight lang="vb">WScript.StdErr.WriteLine "Goodbye, World!"</syntaxhighlight>

=={{header|Verbexx}}==
<syntaxhighlight lang="verbexx">@STDERR "Goodbye, World!\n";</syntaxhighlight>

=={{header|Visual Basic .NET}}==
<syntaxhighlight lang="vbnet">Module Module1

    Sub Main()
        Console.Error.WriteLine("Goodbye, World!")
    End Sub

End Module</syntaxhighlight>

=={{header|WDTE}}==
<syntaxhighlight lang="wdte">io.writeln io.stderr 'Goodbye, World!';</syntaxhighlight>

=={{header|Wren}}==
<syntaxhighlight lang="wren">Fiber.abort("Goodbye, World!")</syntaxhighlight>

=={{header|X86 Assembly}}==
{{works with|nasm|2.05.01}}

This is known to work on Linux, it may or may not work on other Unix-like systems

Note that it is only 2 characters different from the Assembly example on [[User Output - text]]

Prints "Goodbye, World!" to stderr (and there is probably an even simpler version):
<syntaxhighlight lang="asm">section .data
msg     db      'Goodbye, World!', 0AH
len     equ     $-msg

section .text
global  _start
_start: mov     edx, len
        mov     ecx, msg
        mov     ebx, 2
        mov     eax, 4
        int     80h

        mov     ebx, 1
        mov     eax, 1
        int     80h</syntaxhighlight>

=={{header|XLISP}}==
<syntaxhighlight lang="xlisp">(DISPLAY "Goodbye, World!" *ERROR-OUTPUT*)</syntaxhighlight>

=={{header|XPL0}}==
The terms "standard output" and "standard error" are not used, 
but it's trivial to send messages to a variety of devices 
by specifying their numbers. 
Normally messages are displayed on the text console, which is device 0. 
Instead, this example sends the message to the (first) printer,
which is device 2.

<syntaxhighlight lang="xpl0">code Text=12;
Text(2, "Goodbye, World!")</syntaxhighlight>


=={{header|Yabasic}}==
<syntaxhighlight lang="yabasic">
error "Goodbye World!"
</syntaxhighlight>


=={{header|Zig}}==
'''Works with:''' 0.10.x, 0.11.x, 0.12.0-dev.1357+10d03acdb

Variant with error handling:
<syntaxhighlight lang="zig">const std = @import("std");

pub fn main() std.fs.File.WriteError!void {
    const stderr = std.io.getStdErr();

    try stderr.writeAll("Goodbye, World!\n");
}</syntaxhighlight>
'''Works with:''' 0.10.x, 0.11.x, 0.12.0-dev.1357+10d03acdb

Variant with no error handling (useful when debugging):
<syntaxhighlight lang="zig">const std = @import("std");

pub fn main() void {
    // Silently returns if writing to stderr fails.
    std.debug.print("Goodbye, World!\n", .{});
}</syntaxhighlight>

=={{header|zkl}}==
<syntaxhighlight lang="zkl">File.stderr.writeln("Goodbye, World!")</syntaxhighlight>