Do you ever want to take some lines from the middle of a file say, lines 300-400?   You can do that in a kludgey way with Unix head and tail:

   cat ids.csv | head -400 | tail -100

The take command from vbin tools does just that.

   cat ids.csv |take 300 400

Here we flatten the results and build an SQL IN statement:

   cat ids.csv |take 20001 30000 |tr '\n' ' ' | sed "s/ /, /g" > get_customers.sql

By adding a little SQL before and after the list we get something like this:

select
   distinct u.customer_id, u.state
from
   imports i
   join usage u on i.id = u.import_id
where
   i.id in (
40722, 41483, 50364, 52623, 53049, 54795, 73451, 
 ... (thousands of ids here) ... 
986764, 986764, 986764, 986764, 986764, 986764
);

 

So, go ahead, takes some lines.

Also see clip, for panning right to left.