Delete everything except first line
Delete everything except first line
This should be simple, but I'm stumped.
I'm starting with:
Line 1
Line 2
Line 3
Line n
And I want to end up with:
Line 1
I'm using BBEdit, doing a search and replace with grep -- replacing with nothing.
Regular expressions are for pattern matching. What specific pattern are you trying to match? If you don't have one, then grep is the wrong tool for the job.
– Ken White
Apr 9 at 23:54
I'm automating some tasks. One step is to take the first line of a file and paste it somewhere else. The easiest way of doing this for me is to delete everything except the first line and then pass the results on.
– Dave Friedman
Apr 9 at 23:55
The pattern would be from the first line break to the end of file.
– Dave Friedman
Apr 9 at 23:55
grep is not the right tool for this job...you can just use
head -1– George Vasiliou
Apr 9 at 23:56
head -1
1 Answer
1
This seems to work:
r([^<]*)
By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.
I don't understand, are you working with a file? Are you on some Linux distro?
– Daniele Cappuccio
Apr 9 at 23:50