Notices by Yes, I Know IT ! 🎓 (yesiknowit@mastodon.social), page 9

The Complete Guide to Install Raspberry Pi Headless and Wireless

You have a RaspberryPi to install, but no extra keyboard and no external monitor? No problem!
https://linuxhandbook.com/raspberry-pi-headless-setup/

#RPi #Linux #Rasbian #Install #Headless #Wireless

The Complete [and Definitive] Sed Command Guide

You will never need any other sed reference than this article crafted with love 💕... by myself
https://linuxhandbook.com/sed-reference-guide/

#sed #posix #gnu #linux #shell #command #reference

10 Practical Grep Command Examples for Developers
https://linuxhandbook.com/grep-command-examples/

#grep #posix #gnu #shell #command

Getting Started With the SED Command

New to `sed`? This is for you!
https://linuxhandbook.com/sed-command-basics/

#sed #posix #gnu #linux #shell #command

In the Bash, pressing <Alt-U> will convert to uppercase the word starting at the current cursor position

#Bash #Tip

It does not really answer the question asked in the title, but that article gives some interesting facts about the historical reasons behind the odd CD sample rate.

https://www.pro-tools-expert.com/home-page/2016/2/25/is-it-time-to-abandon-441khz
by Paul Maunder (https://www.facebook.com/paul.maunder)

http://niiconsulting.com/checkmate/2018/04/reverse-engineering-x64-for-beginners-linux/

I must confess having learned that many many years ago ... to circumvent the password protection of some VGA video game. Actually, it was more fun learning how to break it rather than actually playing the game!

#x86 #ASM #Hacking

`make` is really a mythical tool in the Unix toolchest.
http://pkgw.github.io/make_for_scientists/

Many times criticized. Feared. Improved or imitated.

But still alive.

The history of Solaris and the free alternatives
https://www.yesik.it/SOLARIS2017

#Solaris #OpenSolaris #Illumos
#YesIKnowIT

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

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

So, you don't know yet the `grep` command ?
https://youtu.be/HBNNO92Juw4

#Shell #Linux #Grep
#YesIKnowIT

Print even lines
seq 10 | sed -n '1b;P;N'

#Shell #Sed #Linux

In #Bash, to edit the last three commands in your favorite EDITOR type:

fc -3 0

When leaving the editor, commands are executed

"How do you know whether a quantum computer has done anything quantum at all?"
Urmila Mahadev knows the answer

https://www.quantamagazine.org/graduate-student-solves-quantum-verification-problem-20181008/
#Quantum #Computing #Achievement

`less -R` will handle gracefully ANSI "color" escape sequences:
ls --color=always /tmp | less -R

#Linux #Shell #ls

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

#AWK #Shell

If you ever had to connect to an Oracle backend, you may know how painful it used to be to set up an Oracle Instance on your test/dev host.

Thanks to @Docker, it is now several orders of magnitude simpler!

https://yesik.it/EP18

#Oracle #Database
#Docker #Container
#Linux

How to use the `chattr` command to secure shared files. An interesting post by Himanshu Arora on HowtoForge.
https://www.howtoforge.com/linux-chattr-command/

BTW, `chattr` has not to be confused with `chmod`!

#Chattr #Linux #Utility

In Bash `$(<file)` is equivalent to `$(cat file)`, but faster:

P=( $(</etc/passwd) )
echo ${P[0]}

#Bash #Linux #Cat

Very great description of the difference between VMs and Containers
by @mikegcoleman
https://blog.docker.com/2016/03/containers-are-not-vms/

#Docker #Containers