Oh. I never got the impression that the OP wanted this. I fail to see why that's a benefit.

If you start two concurrent instances of grep with a wildcard filespec, (win or *nix), then both instances will expand that wildcard to the same list.

So then the problem becomes, how do you distribute the file list across multiple grep instances?

Windows doesn't allow two processes to open the same file?

It does, but not by default. And the permissions required are not available from perl.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In reply to Re^4: Search through multiple files and output results to new file by BrowserUk
in thread Search through multiple files and output results to new file by Moloch

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