Output programming language name

Question

Challenge:

In the programming language of your choice, take no input and output your programming language's name.

Fair enough, right?

Restrictions:

• You can't use any character that is included in your programming language's name in your code. E.g., if I use Batch, I must not use the chars 'B' 'a' t' 'c' 'h' in my code. Note that this is case sensitive. I can still use the char 'b' because it's different from 'B'.
• You can have "junk output" before or after the name of the language
• Version number doesn't count as part of the name of the language. E.g., I can use the number 3 in the code in my answer if it's in Python 3
• The output of the programming language name is not case sensitive.
• Brute-forcing all possible letter combinations and hoping you get your language name is forbidden.

---

Example outputs: (let's say my programming language is called Language) (✔ if valid, else ✖)

• Language ✔
• Body language is a type of non-verbal communication in which physical behavior, as opposed to words, is used to express or convey information. Such behavior includes facial expressions, body posture, gestures, eye movement, touch and the use of space. ✔
• Language 2.0 - © 1078 AD some company ✔
• foobar ✖

---

This is code-golf thus shortest code wins.

Answer 1

Turing Machine But Way Worse, 3813 bytes

0 0 0 1 1 0 0
0 1 1 1 2 0 0
0 2 0 1 3 0 0
0 3 1 1 4 0 0
0 4 0 1 5 0 0
0 5 1 1 6 0 0
0 6 0 1 7 0 0
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0 8 0 1 9 0 0
0 9 1 1 10 0 0
0 10 1 1 11 0 0
0 11 1 1 12 0 0
0 12 0 1 13 0 0
0 13 1 1 14 0 0
0 14 0 1 15 0 0
0 15 1 1 16 1 0
0 16 0 1 17 0 0
0 17 1 1 18 0 0
0 18 1 1 19 0 0
0 19 1 1 20 0 0
0 20 0 1 21 0 0
0 21 0 1 22 0 0
0 22 1 1 23 0 0
0 23 0 1 24 1 0
0 24 0 1 25 0 0
0 25 1 1 26 0 0
0 26 1 1 27 0 0
0 27 0 1 28 0 0
0 28 1 1 29 0 0
0 29 0 1 30 0 0
0 30 0 1 31 0 0
0 31 1 1 32 1 0
0 32 0 1 33 0 0
0 33 1 1 34 0 0
0 34 1 1 35 0 0
0 35 0 1 36 0 0
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0 120 0 1 121 0 0
0 121 1 1 122 0 0
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0 140 0 1 141 0 0
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0 142 0 1 143 0 0
0 143 0 1 144 1 0
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0 145 0 1 146 0 0
0 146 1 1 147 0 0
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0 148 0 1 149 0 0
0 149 0 1 150 0 0
0 150 0 1 151 0 0
0 151 0 1 152 1 0
0 152 0 1 153 0 0
0 153 1 1 154 0 0
0 154 0 1 155 0 0
0 155 1 1 156 0 0
0 156 0 1 157 0 0
0 157 1 1 158 0 0
0 158 1 1 159 0 0
0 159 1 1 160 1 0
0 160 0 1 161 0 0
0 161 1 1 162 0 0
0 162 1 1 163 0 0
0 163 0 1 164 0 0
0 164 0 1 165 0 0
0 165 0 1 166 0 0
0 166 0 1 167 0 0
0 167 1 1 168 1 0
0 168 0 1 169 0 0
0 169 1 1 170 0 0
0 170 1 1 171 0 0
0 171 1 1 172 0 0
0 172 1 1 173 0 0
0 173 0 1 174 0 0
0 174 0 1 175 0 0
0 175 1 1 176 1 0
0 176 0 1 177 0 0
0 177 0 1 178 0 0
0 178 1 1 179 0 0
0 179 0 1 180 0 0
0 180 0 1 181 0 0
0 181 0 1 182 0 0
0 182 0 1 183 0 0
0 183 0 1 184 1 0
0 184 0 1 185 0 0
0 185 1 1 186 0 0
0 186 0 1 187 0 0
0 187 1 1 188 0 0
0 188 0 1 189 0 0
0 189 1 1 190 0 0
0 190 1 1 191 0 0
0 191 1 1 192 1 0
0 192 0 1 193 0 0
0 193 1 1 194 0 0
0 194 1 1 195 0 0
0 195 0 1 196 0 0
0 196 1 1 197 0 0
0 197 1 1 198 0 0
0 198 1 1 199 0 0
0 199 1 1 200 1 0
0 200 0 1 201 0 0
0 201 1 1 202 0 0
0 202 1 1 203 0 0
0 203 1 1 204 0 0
0 204 0 1 205 0 0
0 205 0 1 206 0 0
0 206 1 1 207 0 0
0 207 0 1 208 1 0
0 208 0 1 209 0 0
0 209 1 1 210 0 0
0 210 1 1 211 0 0
0 211 1 1 212 0 0
0 212 0 1 213 0 0
0 213 0 1 214 0 0
0 214 1 1 215 0 0
0 215 1 1 216 1 0
0 216 0 1 217 0 0
0 217 1 1 218 0 0
0 218 1 1 219 0 0
0 219 0 1 220 0 0
0 220 0 1 221 0 0
0 221 1 1 222 0 0
0 222 0 1 223 0 0
0 223 1 1 224 1 1

Try it online!

Little surprised I didn't see this here already.

Answer 2

MarioLANG, 212 bytes

+>+>+>+>+>->->-
+"+"+"+"+"-"-"-
+++++++++-----.
+++++++.+-.-.-
+++++++-+-+-+-
+++++++-+-+-+-
+++++++-+-+-+-
+++++++-+-+-+.
++++++.-+.+-++
++++++--+++-++
++++++--++..++
++++++--++--++
+!+!+!-!+!-!+!
=#=#=#=#=#=#=#

Try it online!

This answer quite simply increments and decrements the value in one cell. I'm pretty sure this is the shortest you can get without loops - I might look at an answer using loops later.

Answer 3

Rail, 35 bytes

$ 'main'
 -[q]?3c(!!)2co\
  #oc1?n(!!)oc5?-&

Try it online!

Here's an expanded version:

 $ 'expanded'
 \
  --[any string]-?-3c-(!discard!)-2c-o\
                                       \
          #-o-c1-?n---(!discard!)-o-c5?--&

Rail works like a train track, with special 'stations' (functions) represented by characters that operate on values from the stack.

This pushes a string ("q" in the short one, "any string" in the long one), and then gets its type ("string"), which has an r in. It then cuts the string up to just get the r, and prints that to stdout.

It then creates an empty lambda, gets its type ("lambda"), which has an a in it, cuts the first 5 letters out, and prints the last a.

It then pushes nil (the empty list) to the stack, with n, gets its type ("nil"), gets the il and prints that.

The special character stations used are as follows:

• [q], [any string]: push a literal string
• ?: pop a value, push its type
• 3: the literal value "3"
• c: pop a, b; cut the string at the ath position and push back both halves
• (!!): pop a value and store it in the variable with name in between the !s.
• o: pop the stack and print its value to Standard Output
• \, -: rails
• &: push a lambda to the stack, and turn the train around a half turn
• n: push nil to the stack.
• #: terminate the program

Fun fact, in the expanded version, the second instance of the variable assignment to discard is actually assigning to dracsid, because the order you go through a station matters. The characters are read individually by the train as it goes through. This doesn't matter, because it's just being used to pop values off the stack and never use them again.

Answer 4

W, 3 bytes

I'll see which is compressable, I am not permitted to use the compressor yet.

Convery 87 to a character.

87C

W, 3 bytes

Output every character between 'a' and 0x00. It maps over the (implicit input) 0 converted to a character to the letter 'a'.

CaM

Answer 5

Keg, -v 0 bytes

Prints:

Keg Last Updated On: Wednesday 15 January 2020

Well, at least using commit 8b6ad216c1fc60e59bd143ba2ee0571df29db2f6 it does. The date part changes between commits. Why? Because -v prints out the current interpreter version.

A 3 byte answer:

ǨƐƓ

Try it online!

Prints:

keg

A 6 byte answer:

L;f;h;

Try it online!

Prints:

Keg

The 3 byter uses the push'n'print part of Keg, and the 6 byter pushes each letter and decrements it to get the correct letter.

Answer 6

Rust, 0 bytes (compile time) / 18 bytes (run time)

Compile time, 0 bytes

Complier output:

error[E0601]: `main` function not found in crate `empty`
  |
  = note: consider adding a `main` function to `empty.rs`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0601`.

Run time, 18 bytes

fn main(){todo!()}

Output:

thread 'main' panicked at 'not yet implemented', panic.rs:1:11
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Unfortunately, panicking via array indices

fn main(){[][1]}

doesn't work, because rustc catches the error at compile time.

Answer 7

Forth (gforth), 1 byte

]

Try it online!

] switches to compile state, causing following words to be executed with their compilation semantics... and apparently, if the program never returns to interpret state, also causing it to output

Gforth 0.7.3, Copyright (C) 1995-2008 Free Software Foundation, Inc.
Gforth comes with ABSOLUTELY NO WARRANTY; for details type `license'
Type `bye' to exit

I thought maybe there was some chance I could get around having to create a definition to use loops for another challenge, but this works too.

Answer 8

<>^v, 14 bytes

60\62\94\118\`

Pushes to stack the character's index in ASCII, then prints them, and prints a newline.

run online

Answer 9

Java (JDK), 0 bytes

Ties OrangeDog's Java answer, nigel222's Python answer, Cees Timmerman's C answer, Loovjo's Vim answer, Noodle9's Vim answer, James Holderness's Befunge answer, Alex Howansky's PHP answer, Flambino's huh? answer, NoOneIsHere's Quetzalcoatl answer, Matthew Roh's C answer, G B's Erlang answer, cp.fe.cp's TeX answer, BlackCap's UPL answer, Rajan Kumar's Go answer, lyxal's Keg answer, user92069's 05AB1E answer, madlaina's Rust answer, and tail spark rabbit ear's Pxem answer for #1.

Try it online!

Output (stderr)

Error: could not find or load class Main
Caused by: java.lang.ClassNotFoundException: Main

---

Python 3, 0 bytes

Takes a command-line option not in this list:

-B
-b
-c
-d
-E
-I
-i
-O
-q
-S
-s
-u
-W
-X
-x

Answer 10

Vyxal h, 0 bytes

Try it Online!

-3 thanks to Lyxal

Answer 11

,,, - 6 5 bytes

44c3×

As short as ","3× and ",,,"!

Explanation

44c3×

44         push 44                        [44]
  c        convert 44 to ASCII character  [',']
   3×      repeat ',' 3 times             [',,,']
           implicit output                []

Answer 12

APOL, 1 byte

↹

The ↹ constant contains the interpreter's name and language version, which with PyPOL evaluates to "PyPOL APOL interpreter vXXXXXX by GingerIndustries 2021". APOL will then implicitly print the constant's value.

Answer 13

Malbolge, 74 bytes

('%$:^"!~}{3Wyxvv-Qsrq('&Jlj(!~}CAA@~>`ut:rq66GsVTj0hQ,kd*u('r%$5"!C^@@.>,

Try it online!

Generated with ZB3's Malbolge Tools

Answer 14

Vyxal h, 0 bytes

Try it Online!

Any character that is an invalid flag will work. Outputs a list of all flags and their descriptions; the v flag says "Use Vyxal encoding for input file" which contains the name.

Edit: This actually doesn't output to Debug (which is like STDERR), instead it prints to regular Output

Answer 15

Commodore C64, 40 PETSCII characters with BASIC keyword abbreviations

?"{CTRL+N}":fOr=40964to40971:?cH(pE(r)+128);:nE

This prints out the ROM bytes from 0xa004 to 0xa00b, and adds 128 to convert the case.

How it works

Firstly, printing the control character N (CTRL + N on the C64 keyboard) switches Commodore C64 BASIC to upper/lower case characters, equivalent of pressing SHIFT + C= key. Like many 8-bit BASIC interpreters, the ? is abbreviation for PRINT.

The fO is F then SHIFT + O on the keyboard, which is the abbreviation for the FOR command. So, we are iterating over 40964 to 40971 inclusive of the ROM, passing the values of these bytes to the variable r.

?cH(pE(r)+128); is printing the contents of each byte per iteration and adding 128. As we're not in the PETSCII graphics mode, these characters will appear as upper case. nE is the abbreviation for NEXT, which will iterate again until r is equal to 40971.

Answer 16

Haskell, 9 bytes

"hASKELL"

You don't even need to know Haskell to see that this works.

Answer 17

Pascal, 47 bytes

BEGIN WRITE(UpCASE('p'),LOWERCASE('ASCAL'))END.

Output:

$ ./g
Pascal$

Alternative boring way, 25 bytes:

BEGIN WRITE('pASCAL')END.

Output:

$ ./g
pASCAL$

Answer 18

Python, 0 bytes (cheating?)

$ python
Python 2.7.13 (default, Jan 13 2017, 10:15:16) 
[GCC 6.3.1 20161221 (Red Hat 6.3.1-1)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

python is a shell command not a language command. It could equally be xyzzy if I have previously done

$ ln -s $( which python) xyzzy

Or just x (one byte, if you insist on counting the shell command as well).

Answer 19

Scala. 11 bytes

1##

Run with scala -feature /path/to/file.scala (+8 bytes for -feature).

Outputs:

/path/to/file.scala:1: warning: a pure expression does nothing in statement position; multiline expressions may require enclosing parentheses
1##
 ^
/path/to/file.scala:1: warning: postfix operator ## should be enabled
by making the implicit value scala.language.postfixOps visible.
This can be achieved by adding the import clause 'import scala.language.postfixOps'
or by setting the compiler option -language:postfixOps.
See the Scaladoc for value scala.language.postfixOps for a discussion
why the feature should be explicitly enabled.
1##
 ^
two warnings found

Answer 20

Del|m|t, 25 bytes

TIO

= : Abiyjyq / 2 > ? # * !

No command line arguments, so the starting delimiter is .

Explanation:
_{Format: (token) command effect}

(=) 29        jump command - no-op the first time through, skips 1 command the other times
(:) 26        Pushes the following String backwards. Only happens once
(A...) 25     "Del|m|t" shifted down by 3. Also the "print char" command
(/) 15        Duplicates top value
(2) 18        Nots the top, used in order to check if we printed everything
(> ?) 30, 31  If we did, end the program
(# *) 3, 10   Add 3 to the value, setting each character back to the desired "Del|m|t"
(!) 1         Pushes 1, which makes the first command skip the pushing of the string.
              This then causes the string "Abiyjyq" to print the top value when we repeat.

The trick here is using the String Abiyjyq to both encode the string Del|m|t, and print the top of the stack as a character. Thankfully, no character in Del|m|t is also in Abiyjyq, because the is in the language name are replaced with |s

Answer 21

Brainelly, 36 bytes

ƑA$ƒṃƁẸḷ-ṚżƁẸH/ƑKƁƊṄ$Ƒ9$⁾ṃmṚỤ$Ƒ7EṢṘ{

---

Original Brainfuck code:

++++[++++>---<]>-.---[----->+<]>-.+++[->+++<]>++.++++++++.+++++.---------.+++++++..-[--->+<]>.

With a no-op inserted to avoid the character restriction:

++++[++++>---<]>-.---[----->+<]>-.+++[->++++-<]>++.++++++++.+++++.---------.+++++++..-[--->+<]>.

Answer 22

Stacked, 30 + 1 = 31 bytes

+1 for p extension. Call like:

node stacked.js -pe "(115:1+97:2+107:6-:1-)#:''join"

(where e is the execute flag.) The p prints the top of the stack at program end. The output is 'stacked'.

Explanation

(115:1+97:2+107:6-:1-)#:''join
(                    )           array containing these
 115                             [115, 
    :1+                                115+1,
       97                                     97,
         :2+                                      97+2,
            107                                         107,
               :6-                                           107-6,
                  :1-                                               107-6+1]
                      #:         cast each number to a character
                        ''join   join by empty strings

Example usage

λ node stacked.js -pe "(115:1+97:2+107:6-:1-)#:''join"
'stacked'

Answer 23

8th, 4 bytes

.ver

Output is as follows:

8th 16.14 WIN64 Free (6362ab32) custid: ########

I blanked my custid with ########

Answer 24

JavaScript (REPL), 42 bytes

'\x6a\x61\x76\x61\x73\x63\x72\x69\x70\x74'

Answer 25

Pyth 8 bytes

r"pYTH"2

Try it online

Answer 26

JAVA, 21 byte

throw new Exception();

print

Exception in thread "main" java.lang.Exception

Full program :

public class OutputProgrammingLanguageName {

  public static void main(String[] args)throws Exception {
    throw new Exception();
  }
}

Answer 27

dc, 6 bytes

Eo194p

Outputs DC. Alternatively, so does this:

Fo207p

The only bases in which dc can output the letter D as part of a number are 14, 15 and 16, but I don't know if it's possible to express 16 using a single byte.

Answer 28

C (gcc), 0 bytes

<Yep, you read it right, 0 bytes.>

According to TIO, it outputs:

usr/lib/gcc/x86_64-redhat-linux/6.3.1/../../../../lib64/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
/srv/wrappers/c-gcc: line 5: ./.bin.tio: No such file or directory

Answer 29

REXX, 21 bytes

parse version a
say a

Will give something like

REXX-Regina_3.9.1(MT) 5.00 5 Apr 2015

or

ARexx V1.15 68070 68881 PAL 50HZ

Answer 30

Erlang, 0 bytes

As many other languages, starting the interactive interpreter shows the language name and version.