Asked • 05/02/19

How to 'grep' a continuous stream?

Is that possible to use `grep` on a continuous stream? What I mean is sort of a `tail -f <file>` command, but with `grep` on the output in order to keep only the lines that interest me. I've tried `tail -f <file> | grep pattern` but it seems that `grep` can only be executed once `tail` finishes, that is to say never.

1 Expert Answer

By:

Cheryl F. answered • 05/04/19

Tutor
New to Wyzant

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