Read a fixed length of input each time

[Peng Yu]

Hi,

I'd like to read a binary in chunks of in bytes. awk by default uses
RS to split the input as records. Is there a way to split the input in
chunks with fixed length instead of using a deliminator? Thanks.

PS. I see the following. But I am not sure if it is appropriate for my
specific question.

https://www.gnu.org/software/gawk/manual/html_node/Fixed-width-data.html

-- 
Regards,
Peng