many sql file and one transaction

Hello,

I have many SQL script files to update schema, delete data, unit test ....etc.  I want to run all the files in one transaction using shell script to ease the installation procedure. I can do that from the psql client by using the \i option

BEGIN;

\i  / .../ module1.sql

\i  / .../ module2.sql

\i  / .../ module_etc.sql
COMMIT;

Is there a way to do that  using psql command  shell script. 

I.E.

I want to run the following  in one transaction, 

psql  -f  module1.sql

psql  -f  module2.sql

psql  -f  module_etc.sql
 

Thanks in advance