Notices by Yes, I Know IT ! 🎓 (yesiknowit@mastodon.social), page 20

The best Doodle *ever*.

My 4 years old boy had lots of fun guiding the rabbit to eat all the carrots. He struggles a little bit with loops though. But after 20 minutes of trial and errors, he did it!

https://g.co/doodle/he69ng?ds=cl

#ProudDad
#KidsCoding

@bob I'm afraid you're right Bob.

@thufir_hawat I didn't mention that in the article as there is still a slight risk of bricking your computer using me_cleaner.

But if you used it successfully, don't hesitate to share your own configuration!

Avoid using /dev/urandom, or even /dev/random:
Use that pool ... I mean "wall" of entropy instead!

https://youtu.be/1cUUfMeOijg

Converting a text to uppercase from the shell? Is that so simple? Yes, but...
https://www.yesik.it/EP17

You've probably noticed from my accent (pun intended), I'm a French native speaker. So, in this video I show you several classical ways to convert characters to upper case from the shell. And most important, I will explain how and why they work--or don't work--with characters outside the ASCII range.

#Uppercase #Lowercase
#Locale #AccentedLetters
#Sed #Awk #Bash

VERY interesting reading for those who are looking for facts and figures about the Linux kernel development. This report covers about 14 months of work, mostly corresponding to kernel version 4.8 through 4.13.

"2017 Linux Kernel Development Report"
https://www.linuxfoundation.org/2017-linux-kernel-report-landing-page/

Pay special attention to "Who is reviewing the work" p20. More than 20% of the Kernel patches are reviewed by people working for Red Hat. Good or bad thing? I let that up to your interpretation. https://mastodon.social/media/Lf7sTosVRabSdwyTie4

Install NodeJS from the sources on your Linux box. Useful if you need a very specific version of NodeJS (or simply, if you want to try out the latest cutting-edge version).

That's also a very good way to make your first steps in installing software from sources! Aspiring developers will even be happy to make their first change to the source of NodeJS, to impress their peer with a customized version message ;)

https://itsfoss.com/install-software-from-source-code/

#Linux #Compiling #NodeJS #FHS

@johnblood I don;t know. Worth trying ;)

Since I discovered Docker, I no longer install any server bare metal on my development computer. With containers, it's so simple to start, stop and restart a server from a clean state! Perfect for testing or experimentation.

In my latest video I show you how to create, start and stop a web server in a Docker container.

Don't hesitate to share/like/comment the video!

https://yesik.it/EP16

#Docker #container #Apache #http

@danie10 Amiga, Atari and Macintosh. Those were the computers we students had at home in the 90s. What a shock each time we entered in the training room at school, lit by the greenish glow of rows of XT PC.

Very few technologies are even even close to the plateau or productivity in the 2017 Gartner Hype Cycle...

... and they are not what you may think:

* Virtual reality (https://www.forbes.com/sites/bernardmarr/2017/07/31/the-amazing-ways-companies-use-virtual-reality-for-business-success/)
* Augmented reality (http://www.businessnewsdaily.com/9245-augmented-reality-for-business.html)
* Software defined security (https://www.infosecurity-magazine.com/opinions/software-defined-security-going/)
* Enterprise Taxonomy and Ontology Management (http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65002005000300004)

Attached are the 2016 and 2017 hype cycles for comparison.

#VR #AR #SDS/#SDSec #EIM https://mastodon.social/media/ZUgnQcthsEKbb2oOd_Y https://mastodon.social/media/FpXi0IrwJCZYETFVis8

In #awk a pattern without associated action defaults to '{ print }'
seq 10 | awk /1/ is the same as
seq 10 | awk '/1/ {print}'

#Shell

seq 10 | awk NR%2
Keep odd lines of a file

#AWK #Shell

Take a look at my Bash & Linux Command Line Course:
https://yesik.it/BSH101

#Bash #Shell #CLI #Linux

Type the same command in all you `tmux` panes:
tmux setw synchronize-panes

#tmux #Terminal #Shell #CLI

XML command line processing:
http://xmlstar.sourceforge.net/

(never ever use #sed for that!)
#XML #XSLT1 #Shell #CLI

JSON command line processing:
https://stedolan.github.io/jq/

(never ever use #sed for that!)
#JSON #Shell #CLI

Solaris is dead, Long live Solaris!
https://itsfoss.com/solaris-alternatives/

#Solaris #OpenSolaris #Illumos

Check your Bash skills and challenge your friends:
https://www.yesik.it/BASH-IT-OUT

#Bash #Shell #Challenge #Puzzle