[LINUX]ONLY BY USING SED [LINUX] DO THE FOLLOWING:

Lets say you have a regular expression as follows saved in file cars

? ?

and lets say you have the following file car_brands_file which contains:

toyota

lexus

prado

bmw

my question is how do i replace Car_brands in the regular expression : ? ?

with the contents of the car_brands_file. Furthermore, say there was a file for car_model too, how am i too replace the word car_model with the car_model_file such that the final output should look something like this for eg.

<

toyota

lexus

prado

bmw>

<

Model_1902

Model_1999

Model_1928

>