Sharing a mail folder between Linux and FreeBSD

[Ralf Mardorf]

PS:
On Mon, 2013-01-28 at 01:36 +0100, Ralf Mardorf wrote:
> # cd /usr/ports/misc/mc && make install clean
> # uname -r
> 8.3-RELEASE
> # freebsd-update -r 9.1-RELEASE upgrade
> # freebsd-update install
> # shutdown -r now
> 
> # freebsd-update install
> # cd /usr/ports/ports-mgmt/portupgrade && make install clean
> # /usr/local/sbin/portupgrade -f ruby
> # rm /var/db/pkg/pkgdb.db
> # /usr/local/sbin/portupgrade -f ruby18-bdb
> # rm /var/db/pkg/pkgdb.db /usr/ports/INDEX-*.db
> # /usr/local/sbin/portupgrade -af
> # freebsd-update install
> # shutdown -r now
> 
> # freebsd-update IDS >> outfile.ids

And I didn't, still don't understand how to set the BATCH-variable to
yes, so it didn't run automatically.
# setenv BASH yes
Is this correct?