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I'm using less to view log files quite a lot and every so often I'd like to filter the output by hiding lines which contains some keywords.

In less it's possible to filter-out lines with &!<keyword> but that only works for one keyword at a time. I'd like to specify a list of keywords to filter-out. Is this at all possible?

29

You can use a regular expression:

 &!cat|dog|fish

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