GoのバイナリをPerl/Ruby/PHPスクリプトとしても扱う (元ネタ https://codehex.hateblo.jp/entry/2019/07/02/090000 https://uzulla.hateblo.jp/entry/2019/07/02/191859)

main.go

package main

import (
    "fmt"
    "io/ioutil"
)

const script = `<?php
file_put_contents("php://stderr", "This is PHP world!!!".PHP_EOL);
__halt_compiler();
#!perl
#!ruby
$Ruby="perl";
print "Hello, $Ruby World!!\n";
__END__
`

func init() {
    ioutil.Discard.Write([]byte(script))
}

func main() {
    fmt.Println("This is Go world!!")
}

$ go build -o main ./main.go;
$ ./main && ( perl -x ./main )&& ( ruby -x ./main) && (php ./main 2>&1 > /dev/null)

This is Go world!!
Hello, perl World!!
Hello, $Ruby World!!
This is PHP world!!!