Update cd with new features

main.py

@@ -3,18 +3,20 @@ import os
 import socket
 import subprocess
 from colorama import Fore
+from os.path import expanduser
 
-initDirectory = os.path.dirname(os.path.realpath(__file__)) 
-currentDirectory = initDirectory
-version = "0.0.1"
+version = "0.1.0"
 user = os.getlogin()
-
-print("Welcome to Mash, " + user + "@" + socket.gethostname() + "! Mash is currently on version " + version)
+initDirectory = expanduser("~") 
+currentDirectory = initDirectory
 
 argList = ["", ""]
 
+print("Welcome to Mash, " + user + "@" + socket.gethostname() + "! Mash is currently on version " + version)
+
 try:
     while True:
+        os.chdir(currentDirectory)
         command = input(Fore.GREEN + user + Fore.WHITE + "@" + socket.gethostname() + Fore.BLUE + " " + currentDirectory + Fore.WHITE + " > ")
         argNumber = 0
         argList.clear()
@@ -41,6 +43,17 @@ try:
             exit()
         elif argList[0] == "version":
             print(version)
+        elif argList[0] == "cd":
+            try:
+                directoryForCD = argList[1]
+                if directoryForCD[0] == "~":
+                    currentDirectory = expanduser("~") + directoryForCD.replace("~", "")
+                if directoryForCD[0] == "/":
+                    currentDirectory = directoryForCD
+                else:
+                    currentDirectory = (currentDirectory + "/" + directoryForCD)            
+            except Exception:
+                print("Either a directory was not provided or an error occured.")
         else:
             try:
                 subprocess.run(argList)