postgres

Server started:
postgres@shruti-Inspiron-N5010:/home/shruti/git_stuff/grails_stuff$ /usr/local/pgsql/bin/postgres -D /usr/local/pgsql/data
LOG:  database system was shut down at 2013-01-29 15:46:28 MST
LOG:  database system is ready to accept connections
LOG:  autovacuum launcher started

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Client connection error

postgres@shruti-Inspiron-N5010:~$ createdb mydb
createdb: could not connect to database postgres: could not connect to server: No such file or directory
  Is the server running locally and accepting
  connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?

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pg_hba.conf

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only
local   all             all                                     trust
# IPv4 local connections:
host    all             all             127.0.0.1/32            trust
# IPv6 local connections:
host    all             all             ::1/128                 trust