使用sftp <<通过golang os / exec输入

Question

What I want to do is exporting a file from my server via SFTP, in golang.

Here is the troubling code

cmd = exec.Command("sftp", "[e-mail]", `INPUT
    cd /some/path
    put file.gz
    quit
    INPUT`)
cmd.Stderr = &stderr
err = cmd.Run()
if err != nil {
    fmt.Println(stderr.String())
    os.Exit(1)
}
fmt.Println("done")

It gets to done but doesn't import file.gz.

Answer 1

I finally found the solution.

cmd = exec.Command("sftp", "[e-mail]")
cmd.Stdin = strings.NewReader(`cd some/path
put file.gz
quit`)
cmd.Stderr = &stderr
err = cmd.Start()
if err != nil {
    fmt.Println(stderr.String())
    fmt.Println(err)
    os.Exit(1)
}
err = cmd.Wait()

I set the commands I need to do once I'm in the STFP by setting cmd.Stdin

cmd.Start() and cmd.Wait() starts the command and stops when the whole command is done.