Обсуждение: send password to pg_dump

Hello,

I'm trying to run pg_dump programmatically, and I'm wondering how I can send
it a password.

I'm running it with a system() call in a child process, and sending the
password in from the parent process on stdin, but somehow pg_dump always
finds out how to ask my terminal for a password. How do I fool it?

(I need this to work in linux... in python would be preferable too.)

Thanks for any advice.

- Shaun
-- 
View this message in context: http://www.nabble.com/send-password-to-pg_dump-tf3048210.html#a8473174
Sent from the PostgreSQL - hackers mailing list archive at Nabble.com.

shaunc wrote:
> Hello,
>
> I'm trying to run pg_dump programmatically, and I'm wondering how I can send
> it a password.
>
> I'm running it with a system() call in a child process, and sending the
> password in from the parent process on stdin, but somehow pg_dump always
> finds out how to ask my terminal for a password. How do I fool it?
>
> (I need this to work in linux... in python would be preferable too.)
>
>
>   

1. this is the wrong forum for this question - here we discuss 
postgresql developments, not usage
2. use a pgpass file, possibly with a PGPASSFILE environment setting as 
well - see the docs for details. This works on all platforms and should 
work with anything at all calling pg_dump.
3. In general, the only way to "fool" programs properly this way is to 
use expect or some equivalent that uses ptys. In this case, it would be 
overkill.

cheers

andrew