Execute several .sql files in a single transaction using PostgreSQL and bash

Question

Say I have the files:

file1.sql
file2.sql
file3.sql

I need all three files to be executed in a single transaction. I\'m looking for a bash

Answer 1

FYI, for Windows command line:

FOR /F "usebackq" %A IN (`dir *.sql /b/a-d`) DO psql -f %A