TitanShell

-- Titan Shell
-- by Agent Silence
-- Please message me through the ComputerCraft forums if you have included this in any os!

OS = false
OSname = "Put OS filename here"
blacklist = {
"Put your blacklisted commands here"
}

functionsList = { -- Add your function
        function() -- Prints all previously typed commands
            if #prevTyped < 18 then
                for k, v in ipairs(prevTyped) do
                        print(k..": "..v)
                end
            else
                textutils.pagedTabulate(prevTyped)
            end
        end,

        function() -- Clears previously typed commands
                term.clear()
                term.setCursorPos(1,1)
                for i=1,#prevTyped do
                        table.remove(prevTyped)
                end
        end     ,

        function()
            if OS == false then
                isOnShell = false
                term.setBackgroundColor(colors.black)
                term.clear()
                term.setCursorPos(1,1)
                print("Thank you for using Titan by Agent Silence")
            else
                isOnShell = false
                term.clear()
                shell.run(OSname)
            end
        end,

        function()
                os.unloadAPI("setting")
                shell.run("shell")
        end,

        function()
                shell.setDir("")
        end
}


if fs.exists("setting") == false then
local code = [[
main = {
["Text Color"] = colors.lightGray,
-- Text color of the console

["Background Color"] = colors.black,
-- Background color

["CMD Count"] = true,
-- Keep track of amount of commands typed
}

]]

local file = fs.open("setting", "w")
file.write(code)
file.close()
end

os.loadAPI("setting")
os.pullEvent = os.pullEventRaw

prevTyped = { } -- Previously called commands
aliasList = { }
aliasNum = { }
isOnShell = true

function alias(nPath,alias) -- Calls an alias to a function
        table.insert(aliasList, alias)
        table.insert(aliasNum, nPath)
end

term.clear()
curX, curY = term.getCursorPos(1,1)
term.setCursorPos(1,1)

-- Alias's Here --
alias(1,"prev")
alias(1,"previous")
alias(2,"clear")
alias(2,"empty")
alias(2,"wipe")
alias(3,"exit")
alias(4,"reload")
alias(4,"rld")
alias(5,"back")
alias(5,"main")
------------------

while isOnShell do

        term.setBackgroundColor(setting.main["Background Color"])
        term.setTextColor(colors.green)

        if setting.main["CMD Count"] == false then
                term.write("["..shell.dir().."] ")
        elseif setting.main["CMD Count"] == true then
                term.write("("..#prevTyped..")["..shell.dir().."] ")
        end -- Command Count setting

        term.setTextColor(setting.main["Text Color"])
        input = read()

        if string.sub(input,1,1) == "@" then
                customCode = true
        else
                customCode = false
        end

        for k,v in pairs(aliasList) do
                if v == string.sub(input,2) and customCode == true then
                        functionsList[aliasNum[k]]()
                end
        end

        if customCode == false then

                if #input > 0 then
                        table.insert(prevTyped, input)
                end

                local marked

                for i,v in pairs(blacklist) do
                        if string.sub(input,1,#v) == v then
                                marked = true
                        end
                end

                if marked ~= true then
                        term.setTextColor(colors.white)
                        shell.run(input)
                else
                        term.setTextColor(colors.red)
                        print("Access Denied")
                end

        end
end