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<?php

// $controller->addFlashMessage("You were logged out.", FlashMessage::WARNING);

// $objectManager = GeneralUtility::makeInstance('TYPO3\\CMS\Extbase\\Object\\ObjectManager');
// $configurationManager = $objectManager->get('TYPO3\\CMS\\Extbase\\Configuration\\FrontendConfigurationManager');
// $configuration =  $configurationManager->getTypoScriptSetup();

// DebugUtility::debug(['view' => $view, 'controller' => $event->getController()]);
// DebugUtility::debug(['fe_user' => $GLOBALS['TSFE']->fe_user, 'content' => $GLOBALS['TSFE']->content]);

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SO Answer

How to check if a variable is set in Bash?
Q: from 2011 A: from 2021

https://stackoverflow.com/a/65482850/202553

if test "${name+x}"; then

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---
title: "-"
author: "Knut Behrends, `r lubridate::year(lubridate::now())`"
summary: ""
date: '`r paste0("2022 / updated ", Sys.Date())`' 
output:
  html_document:
    # CSS file must exist for knit() to succeed
    # styles.css: img { width:150%; }
    # css: styles.css

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Fragen iGSN 2022

• sind Slash / Zeichen gültig in IGSNs
• ist Namensauflösung geregelt für IGSNs
• gehört das standardmäßig "dazu"?
• wenn ich den IGSN registriert habe, bekomme ich dann irgendfwelche garantien was die auflösung betrifft?

DOIs, IGSNs, OAI-PMH, XML-Schema

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# attribute values
curl -sL "${url}${urlparams}" \
  |   xidel -s -e "distinct-values(//node()[attribute::*])" \
  | perl -ple 's/\s+$//' \
  | cat -s -n | head -100

# attribute names
curl -sL "${url}${urlparams}" |   xidel -s -e 'distinct-values(//@*)'

# element names in a document

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// model
document.querySelectorAll("button.v-btn.v-btn--icon.v-btn--small i").forEach( el => el.click()) 

// form
document.querySelectorAll("ul button.v-btn.v-btn--icon.v-btn--small i").forEach( el => el.click()) 

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page = PAGE
page.10 = TEXT
page.10.value (
   <div style="width: 800px; margin: 15% auto;">
      <div style="width: 300px;">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 150 42"><path d="M60.2 14.4v27h-3.8v-27h-6.7v-3.3h17.1v3.3h-6.6zm20.2 12.9v14h-3.9v-14l-7.7-16.2h4.1l5.7 12.2 5.7-12.2h3.9l-7.8 16.2zm19.5 2.6h-3.6v11.4h-3.8V11.1s3.7-.3 7.3-.3c6.6 0 8.5 4.1 8.5 9.4 0 6.5-2.3 9.7-8.4 9.7m.4-16c-2.4 0-4.1.3-4.1.3v12.6h4.1c2.4 0 4.1-1.6 4.1-6.3 0-4.4-1-6.6-4.1-6.6m21.5 27.7c-7.1 0-9-5.2-9-15.8 0-10.2 1.9-15.1 9-15.1s9 4.9 9 15.1c.1 10.6-1.8 15.8-9 15.8m0-27.7c-3.9 0-5.2 2.6-5.2 12.1 0 9.3 1.3 12.4 5.2 12.4 3.9 0 5.2-3.1 5.2-12.4 0-9.4-1.3-12.1-5.2-12.1m19.9 27.7c-2.1 0-5.3-.6-5.7-.7v-3.1c1 .2 3.7.7 5.6.7 2.2 0 3.6-1.9 3.6-5.2 0-3.9-.6-6-3.7-6H138V24h3.1c3.5 0 3.7-3.6 3.7-5.3 0-3.4-1.1-4.8-3.2-4.8-1.9 0-4.1.5-5.3.7v-3.2c.5-.1 3-.7 5.2-.7 4.4 0 7 1.9 7 8.3 0 2.9-1 5.5-3.3 6.3 2.6.2 3.8 3.1 3.8 7.3 0 6.6-2.5 9-7.3 9"/><path fill="#FF8700" d="M31.7 28.8c-.6.2-1.1.2-1.7.2-5.2 0-12.9-18.2-12.9-24.3 0

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#!/usr/bin/env bash

## Christian Ştefănescu @stchris_  2022 Jun 17
## Handy pattern to put metadata from photos into a #sqlite database for easy querying:
exiftool -csv *.JPG > photos.csv

## Convert the csv to sqlite3
sqlite3 photos.db -cmd \
".mode csv" ".import photos.csv photos" "select filename, imagewidth, imageheight from photos;" ".quit"

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:p rdf:range :v

:q rdfs:subPropertyOf :p

:a :q :b

=> :b rdf:type :v

:b is the object in a statement with property :q, 
:q is subproperty of :p and 

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wget -O /tmp/YaHei.Consolas.1.12.zip https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/uigroupcode/YaHei.Consolas.1.12.zip
unzip /tmp/YaHei.Consolas.1.12.zip
sudo mkdir -p /usr/share/fonts/consolas
sudo mv YaHei.Consolas.1.12.ttf /usr/share/fonts/consolas/
sudo chmod 644 /usr/share/fonts/consolas/YaHei.Consolas.1.12.ttf
cd /usr/share/fonts/consolas
sudo mkfontscale && sudo mkfontdir && sudo fc-cache -fv