Mr. Lance E Sloan «UMich» lsloan

Unless specified otherwise in Vagrantfile, the IP address of the host (the computer running Vagrant) from the perspective of the guest (the VM being run by Vagrant) is: 10.0.2.2

If that IP address doesn't work, then examination of Vagrantfile should reveal directives that changed it from its default value.

If an IP address can't be found in Vagrantfile, then the following command will probably reveal it:

route -A inet

While working on a project that produces JSON and sends it to a server using an HTTP POST request, I found it sometimes inconvenient to start the server every time I needed it. Most of the time, unless I was working on the server code itself, I just wanted to see the raw request data. I learned that the nc utility (AKA netcat) could do just that.

However, using nc the way others explained it didn't work well for my purposes. It turns out that it shouldn't be run in the background, as was suggested, and it should give a proper HTTP response to satisfy the client. I came up with this solution:

while [[ 1 ]]; do printf 'HTTP/1.1 200 OK\n\n' | nc -l 127.0.0.1 8000; printf '\n\n= = = = = %s = = = = =\n\n' "$(date)"; done

It's helpful to run this in a shell in a separate window. As new requests are received, they will be seen scrolling up the display.

Vim Notebook

Notes about using the vim editor, especially useful regular expressions (regex, regexes).

Run an external command on all matching lines

:g/pattern/.!command

It's important that the dot command (.) appear between the search pattern and the bang (!) beginning the external command.

Here are my attempts to script an IntelliJ-based IDE.

IDE Scripting Console is backed by JSR-223 (javax.script.*) API.

Groovy, Clojure, JavaScript and other scripting languages may be used.

Open IDE Scripting Console, type a statement, hit Ctrl-Enter to execute the current line or selection.

.profile.language-extension file in the same directory will be executed along with it if present.

	{
	"@context": "http://purl.imsglobal.org/ctx/caliper/v1p1",
	"type": "MessageEvent",
	"actor": {
	"id": "https://example.edu/users/554433",
	"type": "Person"
	},
	"action": "Posted",
	"object": {
	"id": "https://example.edu/sections/1/forums/2/topics/1/messages/2",

	{
	"@context": "http://purl.imsglobal.org/ctx/caliper/v1p1",
	"type": "MessageEvent",
	"actor": {
	"id": "https://example.edu/users/554433",
	"type": "Person"
	},
	"action": "Posted",
	"object": {
	"id": "https://example.edu/sections/1/forums/2/topics/1/messages/2",

	# Convert XML Youtube subtitles to SubRip (srt) format
	# To download the subtitle in XML, put the code of the Youtube video
	# at the end of the next url:
	# http://video.google.com/timedtext?hl=en&lang=en&v=

	# Usage:
	#
	# $ ruby youtube2srt.rb [input_filename] [output_filename]
	#
	# Where input_filename can be either the name of your xml file

	#!/bin/bash

	# Credit:
	# original idea from https://github.com/rfairburn

	clipboard() {
	case "${OSTYPE}" in
	linux*)
	if which xsel &>/dev/null; then
	xsel --input --clipboard

	Gist title: "Markdown and reStructuredText: A Comparison"

	Summary: A comparison of formatting features in Markdown and reStructuredText documents. See the " README.md" file for details.

Mr. Lance E Sloan «UMich» lsloan

Vim Notebook

Run an external command on all matching lines