Go-lang Lesson: Reading a file

This is simple example how to read a text file in the Go language.

package main

import (
    "os"
    "fmt"
    "bufio"
)

func main()  {
    f, err :=os.Open("/Users/ojitha/Documents/workspace/goex1/src/github.com/ojitha/examples/test.txt")
    if err != nil {
        fmt.Fprint(os.Stderr, err)
    } else {
        countLines(f)
    }
    f.Close()

}

func countLines(f *os.File)  {
    input := bufio.NewScanner(f)
    for input.Scan(){
        fmt.Printf(input.Text()+"\n")
    }
}

test.txt is the text file. This program will display all the contents of the text file. If error of opening file display an error instead of file contents.