How to execute postgres' sql queries from batch file?

Question

I need to execute SQL from batch file. I am executing following to connect to Postgres and select data from table

C:/pgsql/bin/psql -h %DB_HOST% -p 5432 -U %DB_         


        

Answer 1

Kindly refer to the documentation

1] if you are passing the file with the sql use -f or --file parameter
2] if you are passing individual command use -c or --command parameter