在linux目录中的所有文件中显示特定行

Question

I have 200 text files in folder F. I want to see lines 2-4 of all files. I have tried something like:

$sed -n '2,5'p *.txt

but it only reads the first file. Can anybody please help?

Furthermore, I might need to send these lines to a new file, something like:

$sed -n '2,5'p *.txt>path

My knowledge of linux is basic, so if you have a totally different solution, please be more specific.

Answer 1

awk 'FNR>1&&FNR<5' *.txt > result.txt

Answer 2

This might work for you (GNU sed):

sed -ns '2,4p' *.txt > results.txt

If you just want to capture the results:

sed -ns '2,4w results.txt' *.txt

Another way to see and capture the results:

sed -ns '2,4!b;p;w results.txt' *.txt

See here for the s invocation option.