Notices by Yes, I Know IT ! 🎓 (yesiknowit@mastodon.social), page 11

Once you tried Linux, it is hard to came back to Windows. According to Will Weaton:

http://wilwheaton.net/2018/03/i-tried-turning-it-off-and-back-on-again/

In JavaScript the "empty" regular expression literal is written `/(?:)/` since the parser would erroneously take `//` as the start of a single-line comment

https://www.ecma-international.org/ecma-262/5.1/#sec-7.8.5
#JavaScript #ECMA #Empty #RegExp

Nice illustration of several random shuffle algorithms, including Fisher–Yates Shuffle:
https://bost.ocks.org/mike/shuffle/
by Mike Bostock (https://twitter.com/mbostock)

#Random #Shuffle #JavaScript #Array

PDF to PNG using ImageMagick
```
convert -background white \
-define pdf:fit-page=A4 \
sourcepath.pdf \
-flatten \
destpath.png
```
#ImageMagick #IM #PDF #PNG #Convert

Despite increasing SSD popularity, hard drives are not yet an extinct specy. But how do they work?

Here is a nice infographic to explain platters, arms, sectors, and much more:
https://www.makeuseof.com/tag/understand-makes-hard-drive-tick/

#HardDrive #HD

How to catenate files scattered through several sub-directories?
https://yesik.it/blog/2018-catenate-files-from-subdirectories

#Linux #Grep #Find #Globstar #Catenate #TextFiles

Of bits and bytes
https://yesik.it/blog/2018-bit-nibble-byte-and-word

#Bit #Nibble #Byte #Octet #Word #BinaryArithmetic #BooleanAlgebra #ComputerScience #ComputerHistory

About the Execute Bit
https://yesik.it/blog/2018-the-x-permission-bit

#Linux #Permissions #Chmod

Basic Vim Commands Every Linux User Must Know

https://linuxhandbook.com/basic-vim-commands/
#vim

9 Useful Examples of Touch Command in Linux

https://linuxhandbook.com/touch-command/
#touch #unix #linux #command

File Timestamps in Linux: atime, mtime, ctime Explained

https://linuxhandbook.com/file-timestamps/
#atime #mtime #ctime #unix #linux

Handle Line Breaking With Fold and FMT Commands in Linux Terminal

https://linuxhandbook.com/fold-fmt-commands/
#fold #fmt #shell #command #linebreaks #newline

Linux File Permissions and Ownership Explained with Examples

https://linuxhandbook.com/linux-file-permissions/
#linux #file #permissions

5 Practical Examples of chgrp command in Linux

https://linuxhandbook.com/chgrp-command/
#chgrp #shell #command

9 Simple Ways to Effectively use Less Command in Linux

https://linuxhandbook.com/less-command/
#less #shell #command

WC Command Examples: Count Number of Lines, Words & Characters in Linux

https://linuxhandbook.com/wc-command/
#wc #wordcount #shell #command

Monitoring and Testing the Health of SSD in Linux

https://linuxhandbook.com/check-ssd-health/
#smart #ssd #hd #monitoring #smartctl #shell #command

5 Practical Examples of Tail Command in Linux

https://linuxhandbook.com/tail-command/
#tail #shell #command

7 Essential and Practical Usage of Paste Command in Linux

https://linuxhandbook.com/paste-command/
#paste #posix #shell #command

Load balancing with HAProxy, Nginx and Keepalived in Linux

https://linuxhandbook.com/load-balancing-setup/
#Nginx #HAProxy #Keepalived #WebServer #LoadBalancing #Linux