eusonlito/custom-keyring-batch.sh

## custom-keyring-batch.sh
#!/bin/bash

for KEY in $(apt-key --keyring /etc/apt/trusted.gpg list | grep -E "(([ ]{1,2}(([0-9A-F]{4}))){10})" | tr -d " " | grep -E "([0-9A-F]){8}\b" ); do K=${KEY:(-8)}; apt-key export $K | sudo gpg --dearmour -o /etc/apt/trusted.gpg.d/imported-from-trusted-gpg-$K.gpg; done

## source.txt
Came across this problem after moving to Ubuntu 22.04 and wanted to add my solution. I had a lot of keys that needed to be updated/converted. This is not an optimal solution, but works well.

This solution is specific to Ubuntu 22.04, with bash 5.2.16. Other distributions and versions may not work.

A one-liner to convert all those deprecated keys to the new format.
PLEASE TAKE THE TIME TO UNDERSTAND WHAT YOUR DOING HERE BEFORE RUNNING IT!! Also make sure your bash is not too old. My bash version: GNU bash, version 5.1.16(1)-release (x86_64-pc-linux-gnu)

Source: https://askubuntu.com/a/1415702
	#!/bin/bash

	for KEY in $(apt-key --keyring /etc/apt/trusted.gpg list \| grep -E "(([ ]{1,2}(([0-9A-F]{4}))){10})" \| tr -d " " \| grep -E "([0-9A-F]){8}\b" ); do K=${KEY:(-8)}; apt-key export $K \| sudo gpg --dearmour -o /etc/apt/trusted.gpg.d/imported-from-trusted-gpg-$K.gpg; done
	Came across this problem after moving to Ubuntu 22.04 and wanted to add my solution. I had a lot of keys that needed to be updated/converted. This is not an optimal solution, but works well.

	This solution is specific to Ubuntu 22.04, with bash 5.2.16. Other distributions and versions may not work.

	A one-liner to convert all those deprecated keys to the new format.
	PLEASE TAKE THE TIME TO UNDERSTAND WHAT YOUR DOING HERE BEFORE RUNNING IT!! Also make sure your bash is not too old. My bash version: GNU bash, version 5.1.16(1)-release (x86_64-pc-linux-gnu)

	Source: https://askubuntu.com/a/1415702