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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
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
Updated on: 30-Jul-2021
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