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Asked: 2026-05-31T05:48:38+00:00

mohpc04pp1: /h/u544835 % psql arco Welcome to psql 8.1.17, the PostgreSQL interactive terminal. Type:

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mohpc04pp1: /h/u544835 % psql arco
Welcome to psql 8.1.17, the PostgreSQL interactive terminal.

Type:  \copyright for distribution terms
   \h for help with SQL commands
   \? for help with psql commands
   \g or terminate with semicolon to execute query
   \q to quit

WARNING:  You are connected to a server with major version 8.3,
but your psql client is major version 8.2.  Some backslash commands,
such as \d, might not work properly.

dbname=> \o /h/u544835/data25000.csv
dbname=> select url from urltable where scoreid=1 limit 25000;
dbname=> \q

This is took from a link online of basically what I have been doing, but what I need to do is make a script that I can use to produce csv files daily

So my aim of the script is to while in the script connect to the db, run the \o etc commands then close it

but I’m having trouble scripting it to say go into the psql arco database then run those queries.

command line to connect to db = psql arco then once the scrits recognised I’m in that databse perform those commands to automate a query to a csv file.

if anyone can get me started or point me towards reading material for me to get past that bit, it will be duely appreciated.

i’m running all this off a standard windows xp, ssh’ing to a SLES set-up web server that holds my postgresql database running psql version 8.1.17

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1 Answer

  1. Editorial Team

    Thanks to Erwin’s help and a link I read up on he posted for me I managed to combine the two to get

    #!/bin/sh

dbname='arco'
username=''   # If you actually supply a username, you need to add the -U switch!
psql $dbname $username << EOF
\f ,
\o /h/u544835/showme.csv
SELECT * FROM storage;
EOF

    which will write my queries to a csv file etc for me.

    From what there is above, it is not separating the sql query so if I load it straight into excel, they all stay in the same column too which means I’m having a problem with the delimiter

    I’ve tried tabbed delimiters, also tried , ; etc but none are letting me separate it
    I need for it
    is there an option I can click to see which delimiter is being used with my psql? or a different way of dumping the data from a query into a file that can be read by excel, so a different column for each row etc

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