Setting metadata title as output-file via filter and defaults?

[hgvhgv]

Is there an easy way to use my metadata title field as my output-file name? I wrote a simple Lua filter that sanitizes the title a bit, but I don't think I can then set a default value from a Lua filter, just set it as a metadata field. Can metadata fields be used as default / command-line options?

[jgm]

You can use a small shell script:

#!/bin/sh -e
temp=$(mktemp)
echo '$title$' > "$temp"
outfile="$(pandoc --template "$temp" "$@")".html
pandoc -o "$outfile" "$@"