Golang Program to Read the Contents of a File

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To read the contents of a file, we can take following steps −

• We can create a file called test.txt.
• Clean-up using defer statement.
• Write the contents of string.
• Call ReadFile() method to read the file.
• ReadFile reads the file named by filename and returns the contents.
• Print the content of the file.

Example

 Live Demo

package main import (    "fmt"    "io/ioutil"    "log"    "os" ) func CreateFile() {    file, err := os.Create("test.txt")    if err != nil {       log.Fatalf("failed creating file: %s", err)    }    defer file.Close()    _, err = file.WriteString("Welcome to Tutorials Point")    if err != nil {       log.Fatalf("failed writing to file: %s", err)    } } func ReadFile() {    fileName := "test.txt"    data, err := ioutil.ReadFile(fileName)    if err != nil {       log.Panicf("failed reading data from file: %s", err)    }    fmt.Printf("\n%s", data) } func main() {    CreateFile()    ReadFile() }

Output

Welcome to Tutorials Point