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<?php
$q = trim($_POST["q"]);
$lines = explode(PHP_EOL, $q);
$result = "";
foreach ($lines as $key => $value) {
    $result .= $value . PHP_EOL;
}
echo $result;
exit;
?>

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Run this command to sum the number of lines in each file of a folder

find . -maxdepth 1 -type f -exec wc -l {} + | awk '{sum+=$1} END {print sum}'

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This one line command will list each folders in current path by the number of files inside of it, recursively.

find . -type d -exec sh -c "fc=\$(find '{}' -type f | wc -l); echo \"\$fc\t{}\"" \; | sort -nr

For only one/specified level of recursion :

find . -maxdepth 1 -type d -exec sh -c "fc=\$(find '{}' -type f | wc -l); echo \"\$fc\t{}\"" \; | sort -nr

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http {
  ##
  # WebP conf
  ##
  
  map $http_accept $webp_suffix {
    default   "";
    "~*webp"  ".webp";
  }
 

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find . -type f -name '*.m4a' -exec bash -c 'avconv -i "$0" "${0/%m4a/mp3}"' '{}' \;

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Install fail2ban

apt install fail2ban

Fail2ban will ban IPs reported in log files. So, you need to configure it to know wich reported IP is to ban.

All configs are located in /etc/fail2ban/ A jail is configured inside the jail.local file that will overwrite jail.conf. It refferes to a filter file inside the filter.d folder. Here are some usefull example of jails.

[DEFAULT]

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Sommaire

• Enjeux des biopiles :
• Définition:
• Avantages:
• Inconvénients:
• Principe de fonctionnement :
• Vers des enzymes toujours plus performantes :

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http{
...

##
#AMP
##
map $http_user_agent $mobile_agent{
	default "";

	"~*android.+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino" "/amp/";

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PyInstaller Quickstart

Install PyInstaller from PyPI:

pip install pyinstaller

Go to your program’s directory and run:

pyinstaller yourprogram.py

It will generate an executable in a dist folder

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from functools import reduce
from sympy import Symbol
X = Symbol('X')

def Lagrange(points):
    
    P=[reduce((lambda x,y: x*y),[(X-points[j][0])/(points[i][0] - points[j][0]) for j in range(len(points)) if i != j])*points[i][1] for i in range(len(points))]
    
    return sum(P)