Go Cat

cat.go

// Copyright 2016 The Nanoninja Authors. All rights reserved.

package main

import (
    "io"
    "log"
    "os"
)

func main() {
    if len(os.Args) <= 1 {
        log.Fatal("Filename is not provided")
    }
    f, err := os.Open(os.Args[1])
    if err != nil {
        log.Fatal(err)
    }
    io.Copy(os.Stdout, f)
}