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A Go program that reads data from a file, processes it, and writes the result to another file

Francis A answered on October 18, 2023 Popularity 5/10 Helpfulness 7/10

answer A Go program that reads data from a file, processes it, and writes the result to another file

A Go program that reads data from a file, processes it, and writes the result to another file

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package main

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

func main() {
	// Open the input file for reading
	inputFile, err := os.Open("input.txt")
	if err != nil {
		fmt.Println("Error opening input file:", err)
		return
	}
	defer inputFile.Close()

	// Create or open the output file for writing
	outputFile, err := os.Create("output.txt")
	if err != nil {
		fmt.Println("Error creating output file:", err)
		return
	}
	defer outputFile.Close()

	scanner := bufio.NewScanner(inputFile)
	writer := bufio.NewWriter(outputFile)

	for scanner.Scan() {
		line := scanner.Text()
		// Process the line (e.g., perform some operations on it)
		// Here, we'll just write it to the output file
		_, err := writer.WriteString(line + "\n")
		if err != nil {
			fmt.Println("Error writing to output file:", err)
			return
		}
	}

	if err := scanner.Err(); err != nil {
		fmt.Println("Error reading input file:", err)
		return
	}

	// Flush the writer and close the output file
	writer.Flush()
}

Go program to read and write files

Popularity 5/10 Helpfulness 7/10 Language whatever

Source: Grepper

Tags: file go whatever

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Contributed on Oct 18 2023

Francis A

0 Answers Avg Quality 2/10

A Go program that reads data from a file, processes it, and writes the result to another file

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