How to reduce compiled file size?

Question

Lets compare c and go: Hello_world.c :

#include
int main(){
    printf(\"Hello world!\");
}

Hello_world.go:

Answer 1

More compact hello-world example:

package main

func main() {
  print("Hello world!")
}

We are skiped large fmt package and noticeably reduced binary:

  $ go build hello.go
  $ ls -lh hello
  ... 259K ... hello2
  $ strip hello
  $ ls -lh hello
  ... 162K ... hello2

Not so compact as C, but though measured in K not M :) Ok, it is not general way just shows some ways to optimize a size: use strip and try to use minimum packages. Anyway Go is not language for making tiny sized binaries.