[Golang] Run wget via Shell Command

In your Go program, you can download things via hget or pget, which is pure Go implementation and portable in all platforms. But if you do not care about portability and just want to use wget on your Linux or Unix-like platform, we can use Go standard os/exec package to run wget via shell command. The following is howto:

import (
      "os"
      "os/exec"
)

// Call shell command wget to download. The reason to use wget is that wget
// supports automatically resume download. So this package only runs on Linux
// systems.
func wget(url, filepath string) error {
      // run shell `wget URL -O filepath`
      cmd := exec.Command("wget", url, "-O", filepath)
      cmd.Stdout = os.Stdout
      cmd.Stderr = os.Stderr
      return cmd.Run()
}

Tested on: Ubuntu Linux 17.10, Go 1.10.

References:

[1]	golang wget - Google search golang wget - DuckDuckGo search golang wget - Ecosia search golang wget - Qwant search golang wget - Bing search golang wget - Yahoo search golang wget - Baidu search golang wget - Yandex search

[2]	GitHub - huydx/hget: interruptable, resumable download accelerator written in golang GitHub - Code-Hex/pget: The fastest file download client GitHub - laher/wget-go: wget, partially re-implemented in go wget - Go libraries and apps

[3]	Help! os/exec Output() on Non-English Windows cmd! : golang