Here is a related problem. The solution mentioned here uses https://github.com/retorquere/zotero-better-bibtex/tree/master/test/fixtures/debug-bridge which let us evaluate javascript code.

I think you should be able to do this with JavaScript. See "Batch editing" on: https://www.zotero.org/support/dev/client_coding/javascript_api

Thanks for your response. What I wanted is exactly running javascript code without any interaction with the GUI. I also want to login from the command line so that I can sync my zotero files in a Linu

I'm not sure I fully understand your set-up, but you've seen In the Tools → Developer menu, select Run JavaScript. Opening the Error Console, which appears in the same menu, will also be helpful.

It is indeed possible to automate zotero client with javascript https://www.zotero.org/support/dev/client_coding/javascript_api . There is a command line agument `jsconsole`, but this seems to require

We'll need to do a little debugging. If you go to Tools → Developer → Run JavaScript and run the following code, what's the output?

A javascript error as well.

It shows that an error occurred while saving this item. Try again, and if the issue persists see Getting Help for more information. And it reports that [JavaScript Error: "Method saveSnapshot failed g

[JavaScript Error: "Component returned failure code: 0x804b000a (NS_ERROR_MALFORMED_URI) [nsIIOService.newURI]" {file: "chrome://zotero/content/xpcom/storage/webdav.js" line: 205}]

But I believe the regex runs when the site is loaded initially, so might not catch stuff generated dynamically via javascript. In that case https://www.zotero.org/support/dev/exposing_metadata#force_z

I should add that "main" is a Javascript file. The others are Microsoft Edge files.

[JavaScript Error: "TypeError: this._progressWindowLabel is null" {file: "resource://zotero/word-processor-plugin-installer.js" line: 257}]

But this just isn't worth spending more time on. You said you can't open the PDF with another program either, so there's clearly some problem with the file. And if you can't swap in a working copy of

[JavaScript Error: "out of memory"]

Thanks @adamsmith. Let's say I want to correct now all the items where I have introduced persons as single field names. Is there some way (using advanced search or Run JavaScript) to search them?

[JavaScript Error: "HTTP request to http://127.0.0.1:23119/connector/saveItems has timed out after 15000ms" {file: "chrome-extension://nmhdhpibnnopknkmonacoephklnflpho/zotero.js" line: 341}]

FWIW, the site would be a major pain to work with, using javascript to pop up a poorly structured metadata window, so this would require significant motivation on someone's part to write.

[JavaScript Error: "HTTP request to http://127.0.0.1:23119/connector/getTranslators has timed out after 15000ms" {file: "chrome-extension://nmhdhpibnnopknkmonacoephklnflpho/zotero.js" line: 341}]

Okay, you've convinced me! I'll try to do this in javascript :)

[JavaScript Error: "repo.zotero.org:443 uses an invalid security certificate.