Can you use a regexp like: s/(known_part)(.*)(change_part)/\1\2replace_part/
Unless I misunderstand that, I'd say no.
The actual file might look this:
/begin file
foo bar{ biz service-one baz service-two }
--many more of that--
# comment
fiz bir{ aaa service-one bbb service-two }
/end file
So only after the "# comment", I want to then start replacing. I am just trying to replace a very ugly long set of commands piped into each other that I am using now.
Thanks! jlc