Re: How to export nnml group to mbox file?

[Andreas Seltenreich]

Ted Zlatanov writes:

> (while Gnus can copy/move the articles natively, it's nice to
> understand how to do the job from the command line)

Ack, it is also much faster than Gnus could ever be.  Batch processing
isn't its forte.

> You should be able to just do "cat * > mbox_file" I think.  But you
> need a blank line at the end of every message, so this should work:
>
> ls | perl -ne 'chomp; open F, $_; print <F>; print "\n";' > mbox_file

I think this would break since Gnus rewrites the From_ lines into
X-From-Line headers and did From-unescaping.

I found the following command in my .bash_history:

--8<---------------cut here---------------start------------->8---
for f in nnml/foo/*; do
    sed '1s/^X-From-Line:/From/;/^$/,$s/^>*From />&/' $f;
done > ~/mymbox
--8<---------------cut here---------------end--------------->8---

...which resulted in an mbox in MBOXRD format.

regards,
andreas