Native shebang: Difference between revisions
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</pre>
=={{header|Go}}==
In Go, single line comments can only begin with // and so we have to use the former in place of a normal shebang (#!) to achieve the same effect.
The 'go run' command compiles a .go source code file to a binary executable and then runs the latter automatically. The executable is placed in a temporary directory which is then deleted when the process ends.
To cache the executable in the current directory, one would have to use 'go build' instead (replace the opening line with ///usr/bin/env go build echo.go; ./echo "$@"; exit).
The following works fine on Ubuntu 16.04.
<lang go>///usr/bin/env go run echo.go "$@"; exit
package main
import (
"fmt"
"os"
)
func main() {
if len(os.Args) > 1 {
fmt.Println(os.Args[1])
}
}</lang>
{{out}}
<pre>
$ ./echo.go "Hello, world!"
Hello, world!
</pre>
=={{header|J}}==
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