Do a tail -F until matching a pattern

Question

I want to do a tail -F on a file until matching a pattern. I found a way using awk, but IMHO my command is not really clean. The problem is that I need to d

Answer 1

Here's an extended version of Jon's solution which uses sed instead of grep so that the output of tail goes to stdout:

sed -r '/EOF/q' <( exec tail -n +0 -f /tmp/foo ); kill $! 2> /dev/null

This works because sed gets created before tail so $! holds the PID of tail

The main advantage of this over the sh -c solutions is that killing a sh seems to print something to the output such as 'Terminated' which is unwelcome