On Wednesday, 28 June 2017 14:40:09 BST m...@considine.net wrote:
> Hi,
>
> I think this is the right venue to ask this question. If not, I can
> hopefully get a pointer to where else to turn.
>
> I need to figure out what - if any - file signatures could be used to
> identify gnucash data files. The need arises from a harddisk crash and
> recovery effort, the result of which was a *lot* of files and file
> fragments recovered, but at the expense of the harddisk's directory
> structure and filenames (for the most part). The harddisk in question
> has terabytes of data on it, so going through the disk manually is not
> practical.
>
> On this disk were the data files for a non-profit which had a somewhat
> customized account tree structure. What I am trying to figure out is if
> there are any unique headers to a minimum number of files that could be
> used to recreate the transactions and other data in gnucash? If there
> are keywords or byte strings I can use, then I can use disk search tools
> for look for the files and fragments that are relevant and try to stitch
> things back together.
>
> FWIW, I believe the account data was stored as XML rather than in a
> database. And the version of gnucash I was using was whatever version
> was stable at the beginning of this calendar year.
>
> Thanks in advance for any help or pointers.
>
> Matt
>
> PS I already understand the wisdom of having some backup elsewhere, so I
> can forgo that pointer. The problem in this case was that this unit was
> also the backup.
>
Hi Matt
from my system:
~> head myfile.gnucash
<?xml version="1.0" encoding="utf-8" ?>
<gnc-v2
xmlns:gnc="http://www.gnucash.org/XML/gnc";
xmlns:act="http://www.gnucash.org/XML/act";
xmlns:book="http://www.gnucash.org/XML/book";
xmlns:cd="http://www.gnucash.org/XML/cd";
xmlns:cmdty="http://www.gnucash.org/XML/cmdty";
xmlns:price="http://www.gnucash.org/XML/price";
xmlns:slot="http://www.gnucash.org/XML/slot";
xmlns:split="http://www.gnucash.org/XML/split";
Now, this is an uncompressed gc file from v 2.6.16, but dating back years; a
file created this year has exactly the same first few lines though.
If your file was saved with compression turned on, then your task is probably
harder - look for gz compressed files.
HTH,
Maf.
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