mutt-wizard/bin/openfile

#!/bin/sh
# Helps open a file with xdg-open from mutt in a external program without weird side effects.
[ $(uname) = "Darwin" ] && opener="open" || opener="setsid xdg-open"
base=$(basename "$1")
ext="${base##*.}"
file=$(mktemp -u --suffix=".$ext")
rm -f "$file"
cp "$1" "$file"
$opener "$file" >/dev/null 2>&1 &