Todd Stellanova tstellanova

Creating a service to startup at BeagleBone Black boot time:

Create a shell script such as /usr/bin/myFancyBash.sh:

  #!/bin/bash

  # this could be any runnable code or shell script, really
  /usr/bin/myFancyPython.py

Note that the first line is critical.

	localhost:slurpsports todd$ jitsu deploy
	info: Welcome to Nodejitsu tstellanova
	info: jitsu v0.12.2, node v0.8.17
	info: It worked if it ends with Nodejitsu ok
	info: Executing command deploy
	info: Analyzing application dependencies in update_league_rosters.coffee
	info: Creating snapshot 0.0.0-1
	info Uploading: [=============================] 100%
	error: Error running command deploy
	error: Nodejitsu Error (500): Internal Server Error

	import cv2

	backsub = cv2.BackgroundSubtractorMOG()

	capture = cv2.VideoCapture("Balcony4_Vis.mpg")

	if capture:
	while True:
	ret, frame = capture.read()
	if ret:

	import cv2.cv as cv

	kalman = cv.CreateKalman(4, 2, 0)

	i = 0
	# I read the point from an .txt file
	with open('trajectory_0000.txt') as f:
	array = []
	for line in f: # read rest of lines
	array.append([int(x) for x in line.split()])

	So the Beaglebone uses the file uEnv.txt to store settings as it doesn't have any NAND allocated to do it with, by
	default the file is pretty empty save from the line:

	optargs=run_hardware_tests quiet

	You may have read a number of things about boot.scr etc - ignore it, it's not correct.
	The bootcmd is hardwired in uboot to do the following (i've seperated it all out to make things clearer) - you can see it by
	interrupting the bootsequence and performing a 'printenv'.

	bootcmd=

	import cv
	import time

	tolerance = 2

	webcam_stream = cv.CaptureFromCAM(0)

	print cv.GetCaptureProperty(webcam_stream,cv.CV_CAP_PROP_FPS)
	print cv.GetCaptureProperty(webcam_stream,cv.CV_CAP_PROP_FRAME_WIDTH)
	print cv.GetCaptureProperty(webcam_stream,cv.CV_CAP_PROP_FRAME_HEIGHT)

	# -- coding: utf-8 --
	"""
	Builds epub book out of Paul Graham's essays: http://paulgraham.com/articles.html

	Author: Ola Sitarska <[email protected]>
	Copyright: Licensed under the GPL-3 (http://www.gnu.org/licenses/gpl-3.0.html)

	This script requires python-epub-library: http://code.google.com/p/python-epub-builder/
	"""

	# 20131214
	# switch to the relevant keg directory
	cd /usr/local/Library/Taps/homebrew-science

	brew versions opencv
	# look for the version you want, eg:
	# 2.4.5 git checkout ae74fe9 opencv.rb

	# checkout the version you want
	git checkout ae74fe9 opencv.rb

	#!/bin/bash
	#
	# Lock GPU and MEM clocks to max MHz
	#
	# - benchmarking shows there is no need to override the MEM clock
	#
	echo
	echo Locking GPU clock to max MHz for debugging porpoises...

	# set to max