M-Shell

term.clear()
term.setTextColor(colors.white)
term.setCursorPos(1,1)
print("M-Shell v1.0")
print("By MarcoPolo0306")
print("Type 'cmds' for all of the commands.")
term.setCursorBlink(true)
write("$> ")
while true do
    input = read()
    if input == "cmds" then
        print("Commands:")
        sleep(0.1)
        print("exit - Exit the shell")
        sleep(0.1)
        print("about - Open the about menu")
        sleep(0.1)
        print("shutdown - Shutdowns the computer")
        sleep(0.1)
        print("reboot - Reboots the computer")
        sleep(0.1)
        print("clear - Clears the screen")
        if fs.exists("m-os") then
            sleep(0.1)
            print("mos - Run M-OS")
        end
    elseif input == "mos" and fs.exists("m-os") then
        shell.run("m-os/boot")
    elseif input == "clear" then
        term.clear()
        term.setCursorPos(1,1)
    elseif input == "exit" then
        term.clear()
        term.setCursorPos(1,1)
        break
    elseif input == "about" then
        print("About M-Shell")
        print("Created by MarcoPolo0306")
        print("(C) MarcoSoft 2016, 2017")
        print("Version 1.0_r1")
        print("Type 'cmds' to show all of the commands.")
        print("Type 'marcosoft' to show everything made my Marcosoft.")
    elseif input == "marcosoft" then
        print("MARCOSOFT")
        textutils.slowPrint("-------------------",10)
        print("OS`s:")
        write("M-OS -")
        if term.isColor() then
            term.setTextColor(colors.green)
            write(" M-Shell")
        else
            write(" M-Shell")
        end
        print(" ")
        term.setTextColor(colors.white)
        print("Programs:")
    elseif input == "shutdown" then
        print("Shutting down...")
        sleep(0.89278217)
        os.shutdown()
    elseif input == "reboot" then
        print("Rebooting...")
        sleep(0.89278217)
        os.reboot()
    else
        shell.run(input)
    end
    write("$> ")
end