Files left over from a installworld

[Richard Jones]

Hi,

I've been continuously upgrading my machine from (I think) RELEASE-4.8,
and I'm beginning to see lots of cruft from older releases accumulating.
What are the list's feelings on deleting the majority of files listed
by:

find / /usr -xdev -mtime +7

There are plenty there that I created or belong the packages e.g.
/etc/mail/$HOSTNAME.mc and /etc/X11/XFConfig

but what about, for example:

/etc/netconfig
/etc/pam.d/ftpd
/etc/periodic/daily/100.clean-disks
/etc/amd.map
/sbin/ip6fw
/sbin/ilmid
/lib/libdevstat.so.4
/lib/libutil.so.4
/rescue/ipmon

Obviously dollops of common sense are needed, but has anyone attempted
to formalize this type spring cleaning?

Regards,

Richard