Archive for September, 2011

 

Postgresql (Postgres) Quick Notes 2..

Sep 30, 2011 in Database, PostgreSQL

— Set superuser :


ALTER ROLE username WITH SUPERUSER;

— Export / extract / dump database :


pg_dump --username=pgadmin --format=p mydb > mydb_pg_dump.sql

Bash comparison operators ..

Sep 21, 2011 in Linux

bash Comparison Operators ..

Some of them:

compound comparison

-a logical and

exp1 -a exp2 returns true if both exp1 and exp2 are true.

-o logical or 

exp1 -o exp2 returns true if either exp1 or exp2 is true.

.. and more ..

http://tldp.org/LDP/abs/html/comparison-ops.html