Bitcoin Step By Step: Michael Caughey
Very hands on with lots of screen shots. Unfortunate with lots of references to Mt Gox. 166 pages with good references. Readable in a few hours.
Author Archives: cloudnthings
Setting up Confluence on Mac OSX 10.11 El Capitan
Getting Confluence 5.9.3 on my Mac this time was a little too easy. It took all of 5 minutes and left me wondering if I had missed something. Caveat: I had gone through the pain of installing Java when I installed JIRA so this helped a lot. If you haven’t installed JIRA, look at my… Read More »
Git tab autocomplete on OSX 10.11 El Capitan
In Ubuntu, this comes out of the box but in terminal on OSX a few extra steps are required to get this to work. It is a bit of a hassle figuring out what needs to be done, but once you know, it literally takes 10 seconds. Step 1: Download auto completion script: >> cd… Read More »
Bitcoin Internals: Chris Clark
Neat book for an overview to whet your appetite. 100 pages. Readable in a few hours.
Setting up JIRA on Mac OSX 10.11 El Capitan
Getting JIRA 7.0.5 on to my mac wasn’t as straight forward as I’d expected but I finally got there in the end. The first thing to note from the Atlassian website is: which was taken from https://confluence.atlassian.com/jira/installing-jira-on-mac-os-x-191501161.html. These steps are what we will be following as well. If you are interested in what I had to… Read More »
How to install or upgrade MongoDB on Ubuntu
Step 1: Add Mongodb to your sources.list.d (for Ubuntu 14.04) This allows you to get the latest files from mongodb.org when you run sudo apt-get install echo “deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.0 multiverse” | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list Step 2: Reload the local package database sudo apt-get update Step 3: Install MongoDB sudo apt-get install -y mongodb-org -y automatically… Read More »
Uninstall MongoDB in Ubuntu via command line in 3 easy steps
Step 1: Stop the service sudo service mongod stop Step 2: Remove packages sudo apt-get purge mongodb-org* Step 3: Remove data directories sudo rm -r /var/log/mongodb sudo rm -r /var/lib/mongodb -r means recursive Reference: https://docs.mongodb.org/v3.0/tutorial/install-mongodb-on-ubuntu/
True or false in C
A simple concept in the C language is the evaluation of a boolean expression with an if statement. But what if the condition is not a typical relational or boolean expression? In C, it is possible to write: if (x){ // if x is true or great than zero printf(“x is true/has a value/great than… Read More »
Digital Gold: Nathaniel Popper
Fantastic book. Highly recommend. 400 pages with solid references. Takes you on a whirlwind tour back in time. Gripping few days of reading.
How does CPU memory work and what every programmers should know about memory
Came across this detailed paper “What Every Programmer Should Know About Memory” by Ulrich Drepper dated 21 November 2007. (http://www.akkadia.org/drepper/cpumemory.pdf) It is a long read but provides a wealth of background which explains some good fundamental concepts that are still valid today. Another article, http://marek.vavrusa.com/c/memory/2015/02/20/memory/ puts another “practical” spin on the original paper and is also… Read More »