Added the main Go file.

The file is broken ATM, to make it work delete the last function at the end.

main.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"bufio"
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func main() {
+	reader := bufio.NewReader(os.Stdin)
+	for {
+		fmt.Print("> ")
+		// Read the keyboard input.
+		input, err := reader.ReadString('\n')
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+		}
+
+		// Handle the execution of the input.
+		if err = execInput(input); err != nil {
+			fmt.Fprintln(os.Stderr, err)
+		}
+	}
+}
+
+func execInput(input string) error {
+	// Remove the newline caracter.
+	input = strings.TrimSuffix(input, "\n")
+
+	// Split the input to separate the command and the arguments.
+	args := strings.Split(input, " ")
+
+	// Check for built-in commands.
+	switch args[0] {
+	case "cd":
+		// Change to ~ with an empty PATH is not supported
+		if len(args) < 2 || args[1] == "" {
+			homeDir, err := os.UserHomeDir()
+			if err != nil {
+				return errors.New("Unable to get home directory")
+			}
+			return os.Chdir(homeDir)
+		}
+		// Change the dir and return the error.
+		return os.Chdir(args[1])
+	case "exit":
+		os.Exit(0)
+	case "version":
+		println("GoShell Version 0.0.1")
+	}
+
+	// Pass the program and the arguments separately.
+	cmd := exec.Command(args[0], args[1:]...)
+
+	// Set the correct output device.
+	cmd.Stderr = os.Stderr
+	cmd.Stdout = os.Stdout
+
+	// Execute the command and return the error.
+	return cmd.Run()
+}
+
+func checkHistory() {
+  if _, err := os.Stat()
+}