Using sed to match a pattern and deleting from the line to the end of the file

Question

I\'m trying to match a pattern from piped input and/or a file, and then remove from the matched lines to the end of the file, inclusive. I\'ve looked everywhere, but can\'t

Answer 1

why not

 sed '/^-----THIS STUFF IS USELESS-----$/,$d' file

In a range expression like you have used, ',$' will specify "to the end of the file"

1 is first line in file, 
$ is last line in file.

output

Files:
 somefiles.tar.gz 1 2 3
 somefiles.tar.gz 1 2 3

With GNU sed, you can do

sed '/^-----THIS STUFF IS USELESS-----$/Q' file

where Q is similar to q quit command, but doesn't print the matching line