Virtualbox error - Kernel driver after Centos Update

On my Centos7 box, after an update I lost the kernel sources.  Virtualbox would no longer start a VM due to updates requiring a recompile.

Running  usr/sbin/rcvboxdrv setup 
showed some errors in cat /var/log/vbox-install.log
After removing & reinstalling kernel sources and running above command again, Virtualbox recompiled the kernel.

yum remove kernel-devel gcc
yum install kernel-devel gcc

Unfortunately this may remove some dependencies also, backup your environment!

Then had to reboot to avoid the "Creating a process..." message for VirtualBox.

ZSH and Oh-My-Zsh Shell Plugins

I remember a long, long time ago, in a galaxy far, far away, I played around with setting up custom DOS prompts.  Memories of Ansi.sys and custom ANSI art come streaming into my brain...

Forget all that.  On CentOS, these two commands will install the Z Shell and Oh-My-Zsh

yum install zsh
sh -c "$(wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)"

Tab allows you to visualize potential paths, running processes, ls without hitting enter, and other awesomeness.

There are one or two Themes and Plugins available.

Some laundry lists, tricks and cheat sheets.

If you're running Windows, 720MB of Babun will get you Zsh among other things...

Hue on HDInsight and HDInsight on Linux

Microsoft might have just made Data Lakes a commodity offering.

Convergence with the Linux realm is happening again at Microsoft with the introduction of Hue on HDInsight (a graphical interface for Hadoop/HDP) and HDInsight on Linux. Hue has been around for quite awhile in the Apache realm and in most Hadoop distros, glad do see HDInsight is finally getting a user-friendly GUI.

Another announcement introduces U-SQL (see Michael Rys (@MikeDoesBigData) Introducing  U-SQL).  A SQL-like, Hive/Pig/Grep/Awk combo language to ELT+QE (Extract/Load/Transform + Query/Extract) on top of the HDInsight Big Data Lake.

The biggest announcement is the Azure Data Lake itself...

Shared folders with Virtualbox and Centos 7

Got a build error with VirtualBox add-ins and HDP Sandbox 2.2.

Building the main Guest Additions module   [FAILED]

Fixed by checking the log file for errors,  Missing kernel directory issue.

$ export KERN_DIR=/lib/modules/2.6.32-504.1.3.el6.x86_64/

$ cd /usr/src/kernels

$ ln -s /usr/src/kernels/2.6.32-573.7.1.el6.x86_64/ 2.6.32-504.1.3.el6.x86_64

Multi tab Putty

Just as it sounds, multiple tabbed putty.
http://ttyplus.com/

And for Windows, there's Clover
http://ejie.me/

Scala kernel for Jupyter notebook and randomness

Some links for Jupyter Notebook setup and randomness...

The Jupyter Scala kernel from Alexandre Archambault
https://github.com/alexarchambault/jupyter-scala

The Jupyter Spark kernel from Brian Schlining
https://github.com/hohonuuli/sparknotebook

Something random from Bryan - convert Genome information to Midi music.
https://github.com/hohonuuli/dna-music/blob/master/README

Something else, video to ascii with akka streams?
https://github.com/hohonuuli/streamerz

Jupyter Server
https://github.com/jupyter/jupyterhub

Setting up public server
http://jupyter-notebook.readthedocs.org/en/latest/public_server.html

Java 9 Kernel for some REPL prototyping
https://github.com/Bachmann1234/java9_kernel
http://blog.takipi.com/5-features-in-java-9-that-will-change-how-you-develop-software-and-2-that-wont/

Adding R to Jupyter
http://ihrke.github.io/jupyter.html

Jupyter, iPython and AVG Antivirus

Linux tools like cygwin and python don't play well with security and Windows.

Not sure why I bother trying to work with linux apps on a wintel box anyway, but if anyone else is...

Exclude c:\python34 directory in virus scanner
http://useragent.xyz/lost-and-important-file-for-python-34/
to
https://try.jupyter.org/
by running
pip install jupyter
for
https://github.com/zabirauf/icsharp
by running
choco install icsharp
which installs Python 3.4.3... sigh
and throws some 404 error
and installs 2 / 4 packages,
not including icsharp.

Looks like http://python-distribute.org/distribute_setup.py is for sale.  :)

git clone https://github.com/zabirauf/icsharp

If you're not familiar with iPython, now called Jupyter to be language agnostic, it is pretty awesome and distributed peer programming will never be the same.
http://www.nature.com/news/ipython-interactive-demo-7.21492

https://www.authorea.com/
https://cloud.sagemath.com/
https://wakari.io/

Now if I could only get the shift-enter compile execution shortcut working with OneNote and C#,  I would be so happy.
http://tryroslyn.azurewebsites.net/