mutt-wizard/bin/openfile

#!/bin/sh
# Helps open a file with xdg-open from mutt in a external program without weird side effects.
[ $(uname) = "Darwin" ] && opener="open" || opener="setsid xdg-open"
mkdir -p "/tmp/$USER-mutt-tmp"
file="/tmp/$USER-mutt-tmp/$(basename "$1")"
rm -f "$file"
cp "$1" "$file"
$opener "$file" >/dev/null 2>&1 &