Question

I am using sed to split a file in two

I have a file that has a custom separator “/-sep-/” and I want to split the file where the separator is

currently I have:

sed -n '1,/-sep-/ {p}' /export/data.temp > /export/data.sql.md5

sed -n '/-sep-/,$ {p}' /export/data.temp > /export/data.sql

but the file 1 contains /-sep-/ at the end and the file two begins with /-sep-/

how can I handle this?

note that on the file one I should remove a break line and the /-sep-/ and on the file 2 remove the /-sep-/ and a break line :S

Answer 1

Reverse it: tell it what to not print instead.

sed '/-sep-/Q' /export/data.temp > /export/data.sql.md5
sed '1,/-sep-/d'/export/data.temp > /export/data.sql

(Regarding that break line, I did not understand it. A sample input would probably help.)

By the way, your original code needs only minor addition to do what you want:

sed -n '1,/-sep-/{/-sep-/!p}' /export/data.temp > /export/data.sql.md5
sed -n '/-sep-/,${/-sep-/!p}' /export/data.temp > /export/data.sql