Go Standard Library Cookbook

How to do it…

1. Open the console and create the folder chapter01/recipe11.
2. Navigate to the directory.
3. Create the main.go file with the following content:

        package main        import (          "fmt"          "io"          "log"          "os"          "os/signal"          "syscall"          "time"        )        var writer *os.File        func main() {          // The file is opened as          // a log file to write into.          // This way we represent the resources          // allocation.          var err error          writer, err = os.OpenFile(fmt.Sprintf("test_%d.log",                time.Now().Unix()), os.O_RDWR|os.O_CREATE, os.ModePerm)          if err != nil {            panic(err)          }          // The code is running in a goroutine          // independently. So in case the program is          // terminated from outside, we need to          // let the goroutine know via the closeChan          closeChan := make(chan bool)          go func() {            for { time.Sleep(time.Second) ...