#!/bin/sh mid="id:$1" file="$(notmuch show "$mid" | sed -n '1s/.*filename:\([^ ]*\).*/\1/p')" temp="$(mktemp)" cat > "$temp" < HERE alot compose --sender felix.vanderjeugt@ugent.be \ --template="$temp" \ --subject spam \ --to spam@ugent.be \ --attach "$file"