Category Archives: mac

Giving root power to a CentOS 7 user

This is an old one. I was explicitly avoiding to pass through this hole, but the time has come. There is the need to run a script that will copy data owned by ROOT from storage A to storage B.  … Continue reading

Posted in bash, batch, big data, bits, EM, errors, linux, mac, osx, rsync | Leave a comment

OSX ipython UnknownBackend %matplotlib unable to use

I’m continuing with my data science experiments. If you are also following some text instead of learning it by use, you may have encountered that you are unable to use matplotlib as suggested on the text.  The line %matplotlib inline … Continue reading

Posted in bash, big data, brew, hardware, ipython, linux, mac, osx, python | Leave a comment

What is Predictive Analytics?

I want to do big data. Unfortunately there is a lot of noise about big data and data mining. There is even now a popular saying related with the topic: “Big data is like teenage sex: everybody is speaking about … Continue reading

Posted in android, big data, bits, correlations, iPad, linux, mac, osx, windows | Leave a comment

Apple configurator deployment error: iPad Stuck on the Apple logo

We are going digital and I need to implement a smooth way to deploy iPads. This is done with the Apple Configurator. I’m not going to explain now how to use it (it’s a very complicated tool) but comment on … Continue reading

Posted in bits, iPad, mac, software | Leave a comment

mysqld recover root password on CentOS 7

The disaster scenario is that you have been installing third party software and its scripts somehow screwed up your mysql (users, tables, whatever). Or it could be that you get a server with mysqld already installed but you don’t know … Continue reading

Posted in bash, centos, docker, linux, mac, mysql | Leave a comment

Clean up google history

 is fantastic. But sometimes it gathers much more information than the one you want, specially if you are logged in in some way or another as you are systematically asked to do. There are hundreds of articles about chrome privacy settings, but … Continue reading

Posted in android, bits, centos, linux, mac, windows | Leave a comment

Different data deletion methods

I was needing a nice summary of deletion methods, what they mean and what they do. What happens when you delete something, and how reliable is your deletion method? Operation/tool Meaning Consequence Delete (in Explorer, or other file explorer) File is … Continue reading

Posted in bits, C, C++, centos, hardware, linux, mac, NTFS, windows, XP | Leave a comment