WriteTo

write_to_writes_all_but_last_few_bytes.go

package main

import (
  "bufio"
  "io/ioutil"
  "log"
  "os"
)

func main() {
  reader := bufio.NewReader(os.Stdin)

  tempFile, err := ioutil.TempFile("/tmp/burnside", "tempfile")

  if err != nil {
    panic(err)
  }

  writer := bufio.NewWriter(tempFile)

  numBytes, err := reader.WriteTo(writer)

  if err != nil {
    panic(err)
  }

  log.Println("numBytes", numBytes)
  log.Println("tempFile.Name()", tempFile.Name())

}