Welcome to my site

Superhero Ninja is an initiative I’ve started in September 2018, it is meant to empower engineers and to find smarter, cleaner and more beautiful solutions to common problems.

This site contains small snippets of code and tips in the form of blog posts, which can quickly help you on your way.

Why Superhero Ninja?

The next part might sound super geeky but I’ve always wanted to feel like a superhero. Being an IT engineer makes me feel like I can have superpowers. Your spider sense will tingle when you see ugly code and we’re changing thousands of systems with the press of a button.

With that in mind it feels like Spiderman, when Uncle Ben told Peter Parker:

”With great power comes great responsibility.”

You can solve big problems with code and with that code you can positively impact lives every day. On the other hand, mistakes can have big consequences. When coded correctly our work helps organisations run more efficiently and effectively.


Most engineers are already ninjas, often solving problems before they come to attention. IT engineers are often working in the shadows, on our best when we’re being invisible and unnoticed.

Yet if you know where to look, our actions are very present.

Superhero Ninja

In the end, I hope the solutions posted on this site can help people write code smarter, safer and more responsibly. And that will make us all feel more like superhero ninjas.

This site’s name is basically a big high five to all engineers, geeks, nerds and alike.

Being proud of what we do and who we are.

I know I am.


Log as well as see error and standard output in Linux Terminal

Quick snippet, as I was searching for this one today. You can output both standard and error output to both screen and log file with the below command: my_command.sh 2>&1 | tee my_command.log Explanation: my_command.sh replace with your command (possibly including arguments) 2>&1 redirects standard error to standard output, otherwise only standard output is written …

About me

Joris Visscher

I am a self employed DevOps engineer, currently working in the Netherlands. I’ve been working in IT since 2001 and have worked with Oracle Middleware software since 2009.

I’ve gained my bachelor degree from the HanzeHogeschool in Groningen after I’ve spent two years working full time as a Windows systems and network administrator.

At work I’m mostly working with Red Hat Linux servers which run some kind of Oracle server software. When I’m at home I’m more playing around on my old thinkpad, which is running Ubuntu Linux. I’ve been using Ubuntu since 2004 with a small de-tour on OSX and Fedora, but I keep coming back to Ubuntu and I wouldn’t want it any other way.

My hobbies are travelling, swimming, cycling and ice skating, or simply having a good time with friends.


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