Create a list of headlines - jaap-karssenberg/zim-wiki GitHub Wiki

Create a file.sh with the following content:

#!/bin/bash

#print =headlines = ...

cat | pcregrep -o1 -i '^\={1,6}([^=].*[^=])={1,6}$'

Create a custom command using the following and check the "..replace current selection":

/path/to/file.sh %f