On 2005-09-19, gargoyle wrote:
> Does mtree even allow this sort of thing? It would appear not...
>
> $ sudo mtree -cK ignore /bin -xp /
> usage: mtree [-cdeilnqrtUux] [-f spec] [-K key] [-k key] [-p path] [-s seed]
>
> $ sudo mtree -cK ignore=/bin -xp /
> mtree: unknown keyword ignore=/bin
>

Poking at the source code for mtree (/usr/src/usr.sbin/mtree) ...

1) the ignore keyword does not take a value - see misc.c

2) the ignore keyword is not used when -c is specified ("see" it's lack
of presence in create.c)

Playing a little more, I ran
mtree -c -K md5digest -p . > mtree.sav

from my home directory. Part of mtree.sav consisted of about 50 lines for
my home/tmp directory, which started with
# ./tmp
tmp type=dir mode=0755 nlink=3 time=1125582578.238338000

I all the lines up to the ending
# ./tmp
..
and added the ignore keyword to that first line. Now it looks like:
tmp ignore type=dir mode=0755 nlink=3 time=1125582578.238338000

at which point, the commands
touch tmp/f{1234}
mtree -f mtree.sav

gave me some output, none of which included the newly create tmp files.

Some of the other keywords on the tmp line (as created) can be removed
without causing mtree to trigger differences, but not all of them.

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