#      
## Overview 
In this course, we are going to learn how to execute a #key# bash code: A bash script is a plain text file that contains a series of commands. #key# from a code in Golang.


## Example code

package main

import (
    "fmt"
    "os/exec"
)

func main() {
    app := "echo"

    arg0 := "-e"
    arg1 := "Hello world"
    arg2 := "\n\tfrom"
    arg3 := "golang"

    cmd := exec.Command(app, arg0, arg1, arg2, arg3)
    stdout, err := cmd.Output()

    if err != nil {
        fmt.Println(err.Error())
        return
    }

    // Print the output
    fmt.Println(string(stdout))
}

## Explanation
In the example above: 

* Line 3-6: We import the packages (`fmt`, `os/exec`) we need to execute the bash code. We use the `fmt` to output our result and the `exec` to run our commands.

* Line 9-14: We declare and assign a `string` to variables.

* Line 16: We assign the `cmd` variable and run the command by chaining `Command()` to `exec`.
>Note: Package `exec` runs external commands. It wraps `os.StartProcess` to make it easier to remap `stdin` and `stdout`, to connect I/O with pipes, and to do other adjustments.

We then access the `output()` 
from `cmd` to obtain the output 
via commands.

* Line 25: We obtain the output.


How to execute bash code in Golang

Execute bash code in Golang by importing "fmt" and "os/exec" packages, assigning commands to variables, and using exec.Command() to run and obtain output.