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    "# Exercise 1.1: Command line exercises\n",
    "\n",
    "<hr>"
   ]
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   "source": [
    "In this exercise, you will play around with the command line on your machine and get more familiar with it.\n",
    "\n",
    "**a)** Let's play around with some options for the `ls` command. First `cd` into a directory that has some interesting files in it (like `~git/bootcamp/command_line_tutorial`). Try the following if you are using `bash`.\n",
    "\n",
    "    ls -F\n",
    "    ls -G    # Might not be as cool with Git Bash on Windows\n",
    "    ls -l\n",
    "    ls -lh\n",
    "    ls -lS\n",
    "    ls -FGLh\n",
    "    \n",
    "You should be able to infer what these different options do, but you can ask the course staff as well.\n",
    "\n",
    "Normally, files that begin with a dot (`.`) are omitted when listing things. They are also generally omitted when you use your OS's GUI-based file handling system (like Finder on Macs). To see them, use `ls -a`. So, `cd` into your home directory (you remember how to do that, right?), and then do\n",
    "\n",
    "    ls -a"
   ]
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**b)** The nuclear option to delete *everything* in a directory is `rm -rf`. The `r` means to delete recursively, and the `f` means to \"force\" deletion. I was going to give you an exercise that uses the nuclear option, but I'm not going to do that. So, just forget I said anything. For this part of the problem, I want you to discuss with someone else in the class *when* the nuclear option might be used, and what needs to be in place before exercising it."
   ]
  },
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   "source": [
    "**c)** Try doing this if you are using macOS or Linux:\n",
    "\n",
    "    ls /\n",
    "    \n",
    "What is `/`?  Try `cd`-ing there and seeing what's in there.  **Do not delete anything!**"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "<br />"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Solution\n",
    "\n",
    "This problem more or less consisted of messing around with the command line."
   ]
  }
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