grep -f maximum number of patterns?

Question

I\'d like to use grep on a text file with -f to match a long list (10,000) of patterns. Turns out that grep doesn\'t like this (who, knew?). After a day, it didn\'t produce

Answer 1

You could certainly give sed a try to see whether you get a better result, but it is a lot of work to do either way on a file of any size. You didn't provide any details on your problem, but if you have 10k patterns I would be trying to think about whether there is some way to generalize them into a smaller number of regular expressions.