Add a whole lot of comments

main.py

@@ -1,38 +1,52 @@
 #!/usr/bin/python
+
+# Imports, of course.
+# You'll need to install colorama from Pip if you want to use colours in the terminal. I'm probably going to replace this when I get around to making a config file properly.
 import os
 import socket
 import subprocess
 import shutil
+import curses
 from datetime import datetime
 from colorama import Fore
 from os.path import expanduser
 
+
+# Some initial variables
 version = "0.1.0"
 user = os.getlogin()
 initDirectory = expanduser("~") 
 currentDirectory = initDirectory
-
 argList = ["", ""]
 
+# Start work on checking whether a config file exists
 if os.path.isfile(expanduser("~") + "/.config/mash/mash.conf") == True:
     configFile = open(expanduser("~") + "/.config/mash/mash.conf")
 else:
     print("Config file does not exist. Copying default file to ~/.config/mash/mash.conf")
     shutil.copyfile("/etc/mash/mash.conf", (expanduser("~") + "/.config/mash/mash.conf"))
 
+# Write the time to the history file
 historyFile = open((expanduser("~") + "/.history.mash"), "a")
 historyFile.write("\n")
 historyFile.write(("Session on " + str(datetime.now())))
 historyFile.write("\n")
 
+# Welcome message. Probably going to be configurable soon enough.
 print("Welcome to Mash, " + user + "@" + socket.gethostname() + "! Mash is currently on version " + version)
 
+# Main loop.
 try:
     while True:
+        # Set directory and prompt for input.
         os.chdir(currentDirectory)
         command = input(Fore.GREEN + user + Fore.WHITE + "@" + socket.gethostname() + Fore.BLUE + " " + currentDirectory + Fore.WHITE + " > ")
+        
+        # Clean some things up for the argument parser.
         argNumber = 0
         argList.clear()
+
+        # Argument parser
         for letter in command:
             if letter == " ":
                 argNumber = argNumber + 1
@@ -41,15 +55,19 @@ try:
                     argList[argNumber] = argList[argNumber] + letter
                 except Exception:
                     argList.append(letter)
+        
+        # Start work on pipes.
         for word in argList:
             if word == "&&":
                 print("This hasnt been implemented yet hahahahah")
+        
+        # Built in commands section
         if argList[0] == "help":
             print("This is Mash, Max's Shell. Mash has a few built in commands, which you can use to run commands, view files and interact with your system.")
             print("Some commands you can run:")
             print("")
-            print("pwd      Print directory you are currently in")
             print("cd       Change your directory.")
+            print("history  See previously ran commands.")
             print("mat      View contents of a file. If you're on a Unix-like OS, use 'cat' instead.")
             print("mls      View all files in a directory. If you're on a Unix-like OS, use 'ls' instead.")
             print("version  Print current version of Mash.")
@@ -91,17 +109,23 @@ try:
             print(historyReadFile.read())
         elif argList[0] == "mtime":
             print(datetime.now())
+        
+        # If a built in command isn't what you wanted, run a new subprocess.
         else:
             try:
                 subprocess.run(argList)
             except Exception:
                 print("Command", command, "either doesn't exist, isn't in the path or isn't in this directory.")
         
+        # Write to the history file
         historyFile = open((expanduser("~") + "/.history.mash"), "a")
         historyFile.write(command)
         historyFile.write("\n")
         historyFile.close()
-#except Exception:
+
-#    print("Looks like there was an error. Exiting...")
+# Handle errors in the main loop
+except Exception:
+    print("Looks like there was an error. Exiting...")
+# Handle ^C
 except KeyboardInterrupt:
     print(" detected! Exiting...")