Question

Here is my one-liner:

sed -n '/BEGIN/,/END/{$d;1d;p}' query

And query:

trash

BEGIN first
labas
END

nieko nėra

BEGIN second
iki
END
nesimato

I expect this result:

labas
iki

However, I get this:

BEGIN first
labas
END
BEGIN second
iki
END

What do I misunderstand about sed context? Shouldn’t {$d,1d;p} delete first and last line of the matching input?

Answer 1

No, it deletes any line of the matching input that is the first or last line of the file. You can see the effect if you remove the first two lines of query (so that the first line is “BEGIN”).