Huge mailbox split?
in [Shell]
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From: Maxwell Lol on 16 Jun 2010 10:17 John Kelly <jak(a)isp2dial.com> writes: > On Wed, 16 Jun 2010 08:19:25 -0400, Maxwell Lol <nospam(a)com.invalid> > wrote: > >>As I said, this will work if your mailboxes purposely prevent lines >>starting with "From" to come in umodified. > >>Sendmail has an option to do this > > I would like to know the sendmail option. It's only an option when it processes incoming mail messages (port 25). So it won't help your problem. I have a mail server, and it uses this option when it saves mail into a file.
From: Tuxedo on 16 Jun 2010 11:00 John Kelly wrote: [...] > It is. You could read the Mozilla source and try to hack out your own > solution. But as for shell related solutions, I think we have reached > the point of diminishing returns. Yes, I agree, it's now off-topic here. I will search for relevant Mozilla groups/forums/docs. Thanks for the advise, especially on dd procedures. Tuxedo
From: Ben Bacarisse on 16 Jun 2010 11:13 Tuxedo <tuxedo(a)mailinator.com> writes: > John Kelly wrote: > > [...] > >> It is. You could read the Mozilla source and try to hack out your own >> solution. But as for shell related solutions, I think we have reached >> the point of diminishing returns. > > Yes, I agree, it's now off-topic here. I will search for relevant Mozilla > groups/forums/docs. Just in case you missed the suggestion a while back... have you tried the file command? It may be able to tell you the format if it is some standard compressed file. It is worth while simply because it takes no more than a second to try. -- Ben.
From: Jon LaBadie on 16 Jun 2010 11:53 Tuxedo wrote: > > Thanks for any advise or theories on how this possibly corrupt mbox may be > reinvigorated and viewed. > You have been calling this an "mbox" file. But it does not start with "From " Does it have ANY "From " lines? grep '^From ' <your_mbox_file> If so, perhaps grep's -n option will tell you the first line beginning a valid mbox format message. You might then use head(1) to retrieve the leading "binary garbage" and deal with that separately. The messages following the leading garbage could be retrieved with tail(1).
From: Tuxedo on 16 Jun 2010 12:01
Ben Bacarisse wrote: [...] > Just in case you missed the suggestion a while back... have you tried > the file command? It may be able to tell you the format if it is some > standard compressed file. It is worth while simply because it takes no > more than a second to try. I didn't miss it, there always seems to exist a new and interesting command to try. Unfortunately the output is a bit vague on this particular file: $ file MyBigCrapBox MyBigCrapBox: data So it just returns 'data'. I guess it is 'compacted' Mozilla mailbox data. I'm searching various Mozilla related sites for possible solutions. At the same time I have a feeling even if there is some way to 'uncompact' the data my system will likely run out of memory while trying to do so. I guess I could split the file first with dd, but then it might not work to uncompact properly. Thanks for the tip. Tuxedo |