That’s a Google dork / search operator syntax, not a full article. If you're looking for a about this, you probably want one that explains:
Remove inurl: for scholar search (it may not work). Search instead: "index.shtml" "2021" "24" inurl view index shtml 24 2021
Manufacturers often release patches to hide these directories from search engines [4]. That’s a Google dork / search operator syntax,
The query is more than just a search string; it is a glimpse into the forgotten layer of the internet. It serves as a reminder of how quickly technology moves and how easily security can be neglected. inurl view index shtml 24 2021
Is searching for this illegal? Technically, no. You are using a search engine to access publicly available data. The server is offering the page to anyone who asks for it.