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Calling psql from a shell script
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* Calling psql from a shell script
@ 2001-06-28 00:44  Wayne Johnson <wdtj@yahoo.com>
  0 siblings, 1 reply; 2+ messages in thread

From: Wayne Johnson @ 2001-06-28 00:44 UTC (permalink / raw)
  To: wdtj@yahoo.com

I am writing some shell scripts that need to access Postgresql.  

What is the best way to select a record and have shell variables set to
the results.

Is there a way to get psql to output data in quoted CSV?

TIA.



^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re: Calling psql from a shell script
@ 2001-06-28 14:18  Gary Stainburn <gary.stainburn@ringways.co.uk>
  parent: Wayne Johnson <wdtj@yahoo.com>
  0 siblings, 0 replies; 2+ messages in thread

From: Gary Stainburn @ 2001-06-28 14:18 UTC (permalink / raw)
  To: Wayne Johnson <wdtj@yahoo.com>; +Cc: pgsql-interfaces

Hi Wayne,

There should be no problems using psql in shell scripts.  I do it to provide 
HTML output in some of my early cgi's (although I now use Perl/DBI).

I think you can get psql to squirt out the data in kinda CSV format by 
setting the delimiters that it should use.  It's a long time since I did 
anything like that, but I think it's got something to do with the \pset 
commands.

The way I do it is to pass the commands to psql through STDIN using a heredoc 
inside the shell script, and then use \o to direct the output and send STDOUT 
to the bit bucket.  Using the -q option to psql to quiet the startup and 
prompt outputs, you could do it with STDOUT directly.

Gary

On Thursday 28 June 2001  1:44 am, you wrote:
> I am writing some shell scripts that need to access Postgresql.
>
> What is the best way to select a record and have shell variables set to
> the results.
>
> Is there a way to get psql to output data in quoted CSV?
>
> TIA.
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: Have you searched our list archives?
>
> http://www.postgresql.org/search.mpl

-- 
Gary Stainburn
 
This email does not contain private or confidential material as it
may be snooped on by interested government parties for unknown
and undisclosed purposes - Regulation of Investigatory Powers Act, 2000     



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