#!/bin/sh
tmp=${TMPDIR-/tmp}/pacman-disowned-$UID-$$
db=$tmp/db
fs=$tmp/fs
mkdir "$tmp"
pacman -Qlq | sort -u > "$db"
find /bin /etc /lib /sbin /usr \
! -name lost+found \
\( -type d -printf '%p/\n' -o -print \) | sort > "$fs"
comm -23 "$fs" "$db"