log_splitter.go

package main

import (
	"bufio"
	"fmt"
	"io"
	"os"
	"strings"
)

func main() {
	inputFile, inputError := os.Open("test.txt")
	if inputError != nil {
		fmt.Println("An error happened.")
	}
	defer inputFile.Close()

	inputReader := bufio.NewReader(inputFile)
	for {
		inputString, readerError := inputReader.ReadString('\n')
		if readerError == io.EOF {
			return
		}
		strings.Split(inputString, `@`)
	}
}

log_splitter.rb

file = File.open 'test.txt'

file.each_line do |line|
  line.split('@')
end