Windows PSQL command line: is there a way to allow for passwordless login?

Question

My goal is to be able to fire off a command without having to be prompted for my password. Is there any way to achieve this from the windows command line? In Linux I feel I

Answer 1

I know it is an old question but for anyone looking like I was, it is hard to find a solution for windows. stick this in a .bat file and it will work (at least for me it did). change director to postres directory, set environment variable PGPASSWORD execute copy command to a csv file and then clear environment variable, then go back to root directory.

cd C:\Program Files\PostgreSQL\9.5\bin\

set PGPASSWORD=yourpassword


psql -d databasename -U yourusername -w -c "\COPY (select * from yourtable) TO 'c:/Users/yourdirectory/yourcsvfilename.csv' DELIMITER '|' CSV HEADER;"

set PGPASSWORD=

cd c:\