GO file operations

file.go

// read file by line
file, err := os.Open("file.txt")
if err != nil {
    log.Fatal(err)
}
defer file.Close()

scan := bufio.NewScanner(file)
for scan.Scan() {
  line := scan.Text()
}

if err := scan.Err(); err != nil {
    log.Fatal(err)
}

// list file in dir
files, err := ioutil.ReadDir("./")
if err != nil {
    log.Fatal(err)
}

for _, f := range files {
        fmt.Println(f.Name())
}