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create code fences with backticks ` or tildes ~
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like so
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add language identifier to highlight code
```python
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XDG_UTILS_DEBUG_LEVEL=2 xdg-mime query default application/x-pdfoutput?xdg-open somefile.pdfon the command line, what application runs? What if you usesee somefile.pdf? Does running the following command help?grep 'pdf.*evince' /etc/mailcap >>~/.mailcapxdg-openuses imagemagick, withseethefile.pdfis opened withevince-previewer. Creating.mailcapdoesn't help.