Start process & check log until start line found?

[naffcat]

Hi,

Can anyone help, I need to write a linux shell script which will either tail a log until a particular line appears (with for example "started") or perhaps have a script which has a loop - sleep - grepp check for line - then exit if found.

I imagine this kind of thing has been done before and there's probably more than one way to do it but would appreaciate any examples

Many thanks