[svedin]

ripgrep has a --passthru flag that does exactly this

  tail -f access.log | rg --passthru '\.jpg'

[philo23]

Brilliant, this looks like exactly what I want. I already use ripgrep a lot, so I should have guessed it had this feature already but wouldn't have known what to search for to find it! Thank you

[zem]

I have that aliased to `hl` in my bashrc

[jpitz]

As does ack