cbexec

A universal shebang wrapper (and gross hack), switching interpreters based on file extension.

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Examples

Bash

#!/usr/bin/env cbexec

builtin printf '%s\n' \
    "Hello Bash World!"

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C

#!/usr/bin/env cbexec

#include <stdio.h>

int main() {
    printf("Hello C World!\n");
	return 0;
}

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COBOL

#!/usr/bin/env cbexec

       IDENTIFICATION DIVISION.
       PROGRAM-ID. COBOL.
       PROCEDURE DIVISION.
       MAIN.
           DISPLAY 'HELLO COBOL WORLD!' END-DISPLAY.
           STOP RUN.

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C++

#!/usr/bin/env cbexec

#include <iostream>

int main()
{
   std::cout << "Hello C++ World!" << std::endl;
   return 0;
}

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C Shell

#!/usr/bin/env cbexec

set fignore = (.o \~) && set hw='Hello C Shell World!' && printf '%s\n' "$hw";

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D

#!/usr/bin/env cbexec

import std.stdio;

int main() {
    writeln("Hello D World!");
	return 0;
}

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Emacs Lisp

#!/usr/bin/env cbexec

(message "Hello Emacs Lisp World!")

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FORTRAN-90

#!/usr/bin/env cbexec

program main
implicit none
write (*, '(a)') 'Hello FORTRAN-90 World!'
stop
end

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FORTRAN-77

#!/usr/bin/env cbexec

      PROGRAM HELLOW
      WRITE(UNIT=*,FMT='(A)')'HELLO FORTRAN-77 WORLD!'
      STOP
      END

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Go

#!/usr/bin/env cbexec

package main

import "fmt"

func main() {
	fmt.Println("Hello Go World!")
}

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Korn Shell

#!/usr/bin/env cbexec

PATH=""
print "Hello Korn Shell World!"

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MATLAB / Octave

#!/usr/bin/env cbexec

printf("Hello MATLAB World!\n");
quit(0);

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OCaml

#!/usr/bin/env cbexec

print_sring "Hello OCaml World!\n"

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'"POSIX"' Shell

#!/usr/bin/env cbexec

(
	exec 2> /dev/null
	time 1> /dev/null 2>&1 < /dev/null
) || {
	XX="Hello POSIX Shell World!" :
	printf '%s\n' "$XX"
} | grep POSIX

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Z Shell

#!/usr/bin/env cbexec

PATH=""
- builtin print "Hello Z Shell World!"

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