Added error protection and ^C detection

main.py

@@ -1,3 +1,4 @@
+#!/usr/bin/python
 import os
 import subprocess
 import re
@@ -8,20 +9,28 @@ version = "0.0.1"
 
 def grabArgument(fullCommand, commandRan):
     fullCommand.replace(commandRan, "")
-
-while True:
-    command = input(currentDirectory + " > ")
-    if command == "pwd":
-        print(currentDirectory)
-    elif command == ("cat"):
-        try:
-            
-            catFile = input("File to catalog: ")
-            catFileOpened = open(catFile)
-            print(catFileOpened.read())
-        except Exception:
-            print("File", catFile, "either doesn't exist or isn't in this directory.")
-    elif command == "version":
-        print(version)
-    else:
-        subprocess.run(command)
+try:
+    while True:
+        command = input(currentDirectory + " > ")
+        if command == "pwd":
+            print(currentDirectory)
+        if command == "exit":
+            exit()
+        elif command == ("cat"):
+            try:
+                catFile = input("File to catalog: ")
+                catFileOpened = open(catFile)
+                print(catFileOpened.read())
+            except Exception:
+                print("File", catFile, "either doesn't exist or isn't in this directory.")
+        elif command == "version":
+            print(version)
+        else:
+            try:
+                subprocess.run(command)
+            except Exception:
+                print("Command", command, "either doesn't exist, isn't in the path or isn't in this directory.")
+except Exception:
+    print("Looks like there was an error. Exiting...")
+except KeyboardInterrupt:
+    print(" detected! Exiting...")