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Old 02-01-2015, 08:37 PM   #5
eschwartz
Ex-Helpdesk Junkie
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Posts: 19,421
Karma: 85400180
Join Date: Nov 2012
Location: The Beaten Path, USA, Roundworld, This Side of Infinity
Device: Kindle Touch fw5.3.7 (Wifi only)
Quote:
Originally Posted by Smokva View Post
@eschwarts: Thank you very much. This worked great. Between the backup and the copying, it took some time (like I said... lots of books ) but it duplicated well, and I am able to delete sections of the original TAG column without it affecting the MY TAGS column. Just what I was looking for. I assume (.*) and \1 are variations of 'copy all' and 'paste all' respectively.
And thank you for making your instructions idiot proof. I appreciate that you did not say "Just use search and replace!"
You're welcome. And yes, they are the Regular Expressions way of saying "capture all" and "replace all".
(Follow that link if you are interested in reading the calibre manual page on Regular Expressions. Useful tool, although of course not obligatory. )

Quote:
@Better Red: Thanks for the suggestion. I actually did look at that plug-in before posting but it seemed that there were too many possible pitfalls for me to use it successfully at my current level of expertise (or lack thereof). Even the programmer warned against it ... and being a firm believer in Murphy's Law.... well, need I say more?
I mean, I am still trying to figure out what the heck "Library Metadata Backup Status" in Library maintenance refers to. (Its obviously not a back-up bc that is done by copying the file through Explorer, so what the heck does it do?)
But at some point in the future, I will experiment with it and/or other plug-ins. There are some good ideas there. At this point though, I just want to get the job done.
Thanks again to both of you for the quick response.
Well, I can't help you with that plugin (it confused my cursory inspection as well) but regarding the backup status, that refers to the backup metadata.opf files in each ebook folder. They contain plaintext structured references to all the metadata about each book. You can ignore them, unless the database tragically corrupts itself someday, and you need to use the Restore Database feature.
And even then, you just click the button and calibre worries about the .opf files.
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