cd
cp -a /usr/share/doc/ .
time find doc -type f -executable -exec chmod -x {} \;
time find doc -type f -executable -exec chmod -x {} +;
find doc -type f -executable -print0 | xargs -0 chmod -x

find / -xdev -uid 1002 -exec chown root {} \;
find / -type f -printf "%s %p\n" | sort -n | tac | head -5