3h of golang and some weird malfunctioned shell

shell.go

package main

import (
	"bufio"
	"fmt"
	"github.com/codecrafters-io/shell-starter-go/cmd/myshell/commands"
	"os"
	"os/exec"
	"path/filepath"
	"strconv"
	"strings"
)

func main() {
	// Uncomment this block to pass the first stage
	for {
		fmt.Fprint(os.Stdout, "$ ")

		// Wait for user input
		input, _ := bufio.NewReader(os.Stdin).ReadString('\n')

		rawArgs := strings.Split(strings.Trim(input, "\n"), " ")

		cmd := rawArgs[0]
		args := make([]string, 0)
		if len(rawArgs) > 1 {
			args = rawArgs[1:]
		}

		switch cmd {

		case "echo":
			fmt.Printf("%v\n", strings.Join(args, " "))
			break
		case "exit":
			exitStatus := 0
			if len(args) >= 1 {
				exitStatus, _ = strconv.Atoi(args[0])
			}

			os.Exit(exitStatus)

		case "type":

			commandOutput := args[0] + ": not found"

			paths := strings.Split(os.Getenv("PATH"), ":")
			for _, path := range paths {
				err := filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
					if err != nil {
						return err
					}

					if info.Name() == args[0] {
						commandOutput = args[0] + " is " + path
					}

					return nil
				})

				if err != nil {
					// TODO: error handling ???
				}

			}

			for _, command := range commands.CommandsAvailable() {
				if command == args[0] {
					commandOutput = args[0] + " is a shell builtin"
					break
				}
			}

			fmt.Fprintln(os.Stdout, commandOutput)

			break
		default:
			paths := strings.Split(os.Getenv("PATH"), ":")
			commandExecuted := false
			for _, path := range paths {
				err := filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
					if err != nil {
						return err
					}

					if info.Name() == cmd {

						var cmdStruct *exec.Cmd

						if len(args) > 0 {
							cmdStruct = exec.Command(path, args...)
						} else {
							cmdStruct = exec.Command(path)
						}

						out, err := cmdStruct.Output()

						if err != nil {
							return err
						}

						fmt.Print(string(out))
						commandExecuted = true

					}

					return nil
				})

				if err != nil {
					// TODO: error handling ???
				}

			}
			if !commandExecuted {
				fmt.Fprintf(os.Stdout, "%s: command not found\n", cmd)
			}

			break
		}
	}
}