uname_release.go

package main

import (
 "fmt"
 "syscall"
)

func UtsArrayToStr(in []int8) string {
 i, out := 0, make([]byte, 0, len(in))
 for ; i < len(in); i++ {
  if in[i] == 0 {
   break
  }
  out = append(out, byte(in[i]))
 }
 return string(out)
}

func uname() (*syscall.Utsname, error) {
 uts := &syscall.Utsname{}

 if err := syscall.Uname(uts); err != nil {
  return nil, err
 }
 return uts, nil
}

func main() {
 u, e := uname()

 if e == nil {
  fmt.Println(UtsArrayToStr(u.Release[:]))
  }
}