https://www.tl-photography.at/misc/raspberry-pi-as-wifi-to-ethernet-bridge/
“0ddn1x: tricks with *nix | a minimalist’s medley” is published under Creative Commons Attribution – NonCommercial 4.0 International (CC BY-NC 4.0) licensing.
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“0ddn1x: tricks with *nix” is published solely on odd-numbered weeks, viz…
0ddn1x() { echo $(expr $(date -u +%U) % 2) }