My hypothesis:
- Someone in Epstein's circle had to be the IT guy.
- That IT guy wanted to have the Bash documentation locally (which is sensible, I do too).
- A discovery subpoena might request "all documents referencing (something)", which boils down to an extremely loose string search, and the documents' relevance to the case are determined later.
- The Bash documentation was caught by the algorithm because it contained some word they were searching for.
For all we know, the lawyers might've been looking for the word "child" and the algorithm found "child processes".