Show and Tell 2024-12-12

Willkommen

• Deine Special-Interests sind willkommen!
• Wie funktioniert das?

Was wir heute gelernt haben:

https://media.ccc.de/v/2024-386-neurodivergenz-und-technologie

with Adam Rutherford (2023 HBS Haldane Lecture)

https://www.youtube.com/watch?v=Gddkc5Snq3I

Nach dem Signalton bitte nicht mehr in die U-Bahn einsteigen!

Die Wiener Linien informieren

U-Bahn frei für die U2

ab 6. Dezember wieder bis zum Karlsplatz!

Zonemaster

DNS Zone testing tool to evaluate your DNS infrastructure.

https://www.zonemaster.net/

Knot DNS

https://www.knot-dns.cz/

Molecule

https://ansible.readthedocs.io/projects/molecule/

IETF

https://www.ietf.org/

TOTP: Time-Based One-Time Password Algorithm

Formerly known as “Google Authenticator”, though an RFC standard for 15+ years. https://datatracker.ietf.org/doc/html/rfc6238

Key words for use in RFCs to Indicate Requirement Levels

RFC 2119

https://datatracker.ietf.org/doc/html/rfc2119

38c3

Der 28. Chaos Communication Congress

iOS/macOS App

https://apps.apple.com/at/app/congress-38c3/id941205524?l=en-GB

Chaos Pat:innen

https://events.ccc.de/2024/11/13/38c3-chaospatinnen/

Nano text editor

Text Editoren

 * nano
 * vim
   * vimtutor

nano cheat sheet https://www.nano-editor.org/dist/latest/cheatsheet.html

Haecksen

Haecksen

https://www.haecksen.org/

• nano
• vim
  • vimtutor

Wiener Punkte: Data.gv.at Wiener Linien „Öffimonitor“

Die Wiener Punkte

• https://www.data.gv.at/katalog/application/3f2c4c4d-9b46-449e-81ff-d82f28658458#additional-info
• https://wienerpunkte.at/
• Brace expansion

$ mkdir test-{1,2} <tab>

• glob patterns in shell replacements

<syntaxhighlight lang="bash">var=/this/is/a/path

1. remove longest suffix

echo ${var##}

user@osint:~$ var=/this/is/a/path user@osint:~$ echo ${var##*/} path user@osint:~$ echo ${var##*/} path user@osint:~$ echo ${var#*/} this/is/a/path user@osint:~$ echo ${var%%/*}

user@osint:~$ echo ${var%/*} /this/is/a user@osint:~$ echo ${var//\/_} /this/is/a/path user@osint:~$ echo ${var//\//_} _this_is_a_path user@osint:~$ echo ${var/\//_} _this/is/a/path user@osint:~$ echo ${var^^} user@osint:~$ echo ${var,,} /this/is/a/path user@osint:~$ echo ${var2,,} something user@osint:~$ echo ${var^} /this/is/a/path</syntaxhighlight>

• https://mywiki.wooledge.org/BashGuide

Shellcheck

A sane Linter for your shell scripts! https://www.shellcheck.net