Simple CLI C# File Manager

using System.Runtime.InteropServices;
using Microsoft.VisualBasic;
using System.Diagnostics;

internal class Program
{
    private static void Main(string[] args)
    {
        // Set current directory value to default
        string currentDir = @"C:\\";

        Console.WriteLine("CLI File Manager V1");
        Console.WriteLine("Enter 'help' command to get help");

        // Function that open file with default program
        void OpenWithDefaultProgram(string path)
        {   try {
                // Create new procces, assing explorer as procces and then starts the procces
                using Process fileopener = new Process();

                fileopener.StartInfo.FileName = "explorer";
                fileopener.StartInfo.Arguments = "\"" + path + "\"";
                fileopener.Start();
            } catch {
                Console.WriteLine("Exception occured while executing command");
            }
        }

        // Function that lists all directories and files
        void listCommand() {
            try {
                Console.WriteLine("Showing contents of " + currentDir);
                // For each file, get its name and displays it
                string[] allfiles = Directory.GetFiles(currentDir);
                foreach (var file in allfiles){
                    FileInfo info = new FileInfo(file);
                    Console.WriteLine(info.Name + " <FILE>");
                }

                // For each directory, get its name and displays it
                string[] directories = Directory.GetDirectories(currentDir);
                foreach (string dir in directories)
                {
                    string trimmedString = Path.GetFileName(dir);

                    Console.WriteLine(trimmedString + " <DIRECTORY>");
                }
            } catch {
                Console.WriteLine("Exception occured while executing command");
            }
        }

        void goCommand() {
            try {
                Console.WriteLine("Enter directory name");
                // Read from the console what directory user wanna acces
                string arg = Console.ReadLine();
                // Gets directories inside current directory and scans the list it for the desired directory, if found the current directory would be assigned to desired directory
                string[] directories = Directory.GetDirectories(currentDir);
                foreach (string dir in directories)
                {
                    string trimmedString = Path.GetFileName(dir);
                    if (trimmedString == arg) {
                        currentDir = dir;
                        Console.WriteLine("Jumped into " + trimmedString + " directory");
                        return;
                    }
                }
                Console.WriteLine("Directory " + arg + " was not founded");
            } catch {
                Console.WriteLine("Exception occured while executing command");
            }
        }

        void returnCommand() {
            try {
                // Get parent of current directory and then sets it as current directory
                string parentDirectory = Directory.GetParent(currentDir).FullName;
                currentDir = parentDirectory;
                Console.WriteLine("Jumped into " + currentDir + " directory");
            } catch {
                Console.WriteLine("Exception occured while executing command");
            }
        }

        void openCommand() {
            try {
                Console.WriteLine("Enter file name");
                // Get arguments from console, what file the user wanna open
                string arg = Console.ReadLine();
                // Gets all files and scans them for desired file, if found it would be opened via OpenWithDefaultProgram function
                string[] allfiles = Directory.GetFiles(currentDir);
                foreach (var file in allfiles){
                    FileInfo info = new FileInfo(file);
                    if (arg == info.Name) {
                        OpenWithDefaultProgram(info.FullName);
                        Console.WriteLine("File " + info.Name + " was opened");
                        return;
                    }
                }
                Console.WriteLine("File " + arg + " was not founded");
            } catch {
                Console.WriteLine("Exception occured while executing command");
            }

        }

        void dcreateCommand() {
            try {
                Console.WriteLine("Enter directory name that you wanna create");
                // Gets arguments from console, what directory user wanna create
                string arg = Console.ReadLine();
                string path = currentDir + "\\" + arg;
                // Check if directory does not exist, if donsent exist it would create the desired directory
                if (!Directory.Exists(path))
                {
                    Directory.CreateDirectory(path);
                    Console.WriteLine("Directory " + arg + " created succefuely");
                    return;
                }
                Console.WriteLine("Directory " + arg + " already exist");
            } catch {
                Console.WriteLine("Exception occured while executing command");
            }
        }

        void fcreateCommand() {
            try {
                // Gets arguments from console, what file user wanna create
                Console.WriteLine("Enter file name that you wanna create");
                string arg = Console.ReadLine();
                string path = currentDir + "\\" + arg;

                // Check if file does not exist, if donsent exist it would create the desired file
                if (!File.Exists(path))
                {
                    File.Create(path).Dispose();
                    Console.WriteLine("File " + arg + " created succefuely");
                    return;
                }
                Console.WriteLine("File " + arg + " already exist");
            } catch {
                Console.WriteLine("Exception occured while executing command");
            }
        }

        void deleteCommand() {
            try {
                Console.WriteLine("Enter file or directory that you wanna delete");
                // Get the arguments from console, what folder or file user wanna get deleted
                string arg = Console.ReadLine();
                string path = currentDir + "\\" + arg;
                // Check if directory exist, if yes it would delete the directory
                if (Directory.Exists(path))
                {
                    Directory.Delete(path, true);
                    Console.WriteLine("Directory " + arg + "succesfully deleted");
                    return;
                }
                // Check if file exist, if yes delete the file
                else if (File.Exists(path))
                {
                    File.Delete(path);
                    Console.WriteLine("File " + arg + "succesfully deleted");
                    return;
                }
                Console.WriteLine("File or directory " + arg + "dosen't exist");
            } catch {
                Console.WriteLine("Exception occured while executing command");
            }
        }

        // Display help menu to the console
        void helpCommand() {
            Console.WriteLine("Commands list:");
            Console.WriteLine("list > display contents of current directory");
            Console.WriteLine("go > go to specific directory");
            Console.WriteLine("retirn > go to the parent directory");
            Console.WriteLine("open > open specific file");
            Console.WriteLine("dcreate > create folder in current directory");
            Console.WriteLine("fcreate > create file in current directory");
            Console.WriteLine("delete > delete specific file or directory");
            Console.WriteLine("help > show this current message");
            Console.WriteLine("-----\nDon't put arguments behind commands, the argument handler is after you execute the command");
        }

        // Switch that binds functions to commands
        void handleCommands(string command)
        {
            switch (command)
            {
                case "list": // List files/Directories
                    listCommand();
                    break;
                case "dcreate": // Create Folder
                    dcreateCommand();
                    break;
                case "open": // Open File
                    openCommand();
                    break;
                case "go": // Go to directory/path
                    goCommand();
                    break;
                case "return": // Return to the lower directory
                    returnCommand();
                    break;
                case "fcreate": // Create file
                    fcreateCommand();
                    break;
                case "help": // Show help dialog
                    helpCommand();
                    break;
                case "delete": // Delete file
                    deleteCommand();
                    break;
                default:
                    Console.WriteLine("Undefined command");
                    break;
            }
        }

        // Handle console input, and make infinite loop
        void handeInput()
        {
            Console.WriteLine("          ");
            string command = Console.ReadLine();
            Console.WriteLine("Command executed> " + command);
            handleCommands(command);
            handeInput();
        }

        handeInput();
    }
}