database - postgresql - start on mac - `pg_ctl` not working -


i want use pre-installed postgresql on local machine (mac os 10.7.5), when run which psql find (in /usr/bin/psql), running 

pg_ctl -d /usr/bin/psql -l /usr/bin/psql/server.log start

results in:

-bash: pg_ctl: command not found

how can start/use postgresql database? need install (with homebrew) or can use pre-installed 1 on mac? tried using initdb command (initdb /usr/bin/psql -e utf8) , go tthe same message: -bash: initdb: command not found.

also, psql same postgres? (i tried which postgres , got nothing)

update: i'm using psql commands in command line, getting there following message (for psql -l , psql -a instance): 

psql: not connect server: no such file or directory server running locally , accepting connections on unix domain socket "/var/pgsql_socket/.s.pgsql.5432"?

os x ships command line client (for interacting postgres databases) not server.

you need install server.

check the postgres site or grab postgres.app


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