createuser

CREATEUSER(1)		PostgreSQL Client Applications		CREATEUSER(1)



NAME
       createuser - define a new PostgreSQL user account


SYNOPSIS
       createuser [ option... ]	 [ username ]

DESCRIPTION
       createuser creates a new PostgreSQL user.  Only superusers (users with
       usesuper set in the pg_shadow table) can create new PostgreSQL  users,
       so  createuser  must  be invoked by someone who can connect as a Post-
       greSQL superuser.

       Being a superuser also implies the ability to bypass access permission
       checks  within  the  database,  so  superuserdom should not be granted
       lightly.

       createuser is a wrapper around  the  SQL	 command  CREATE  USER	[cre-
       ate_user(7)].  There is no effective difference between creating users
       via this utility and via other methods for accessing the server.

OPTIONS
       createuser accepts the following command-line arguments:

       username
	      Specifies the name of the PostgreSQL user to be created.	 This
	      name must be unique among all PostgreSQL users.

       -a

       --adduser
	      The  new	user  is allowed to create other users.	 (Note: Actu-
	      ally, this makes the new	user  a	 superuser.   The  option  is
	      poorly named.)

       -A

       --no-adduser
	      The  new	user  is not allowed to create other users (i.e., the
	      new user is a regular user, not  a  superuser).	This  is  the
	      default.

       -d

       --createdb
	      The new user is allowed to create databases.

       -D

       --no-createdb
	      The  new	user is not allowed to create databases.  This is the
	      default.

       -e

       --echo Echo the commands that createuser generates and  sends  to  the
	      server.

       -E

       --encrypted
	      Encrypts	the  user’s  password  stored in the database. If not
	      specified, the default password behavior is used.

       -i number

       --sysid number
	      Allows you to pick a non-default user ID for the new user. This
	      is not necessary, but some people like it.

       -N

       --unencrypted
	      Does not encrypt the user’s password stored in the database. If
	      not specified, the default password behavior is used.

       -P

       --pwprompt
	      If given, createuser will issue a prompt for  the	 password  of
	      the new user. This is not necessary if you do not plan on using
	      password authentication.

       -q

       --quiet
	      Do not display a response.


       You will be prompted for a name and other missing information if it is
       not specified on the command line.

       createuser  also accepts the following command-line arguments for con-
       nection parameters:

       -h host

       --host host
	      Specifies the host name of the machine on which the  server  is
	      running.	If  the	 value begins with a slash, it is used as the
	      directory for the Unix domain socket.

       -p port

       --port port
	      Specifies the TCP port or local Unix domain socket file  exten-
	      sion on which the server is listening for connections.

       -U username

       --username username
	      User name to connect as (not the user name to create).

       -W

       --password
	      Force  password  prompt  (to connect to the server, not for the
	      password of the new user).


ENVIRONMENT
       PGHOST

       PGPORT

       PGUSER Default connection parameters

DIAGNOSTICS
       In case of difficulty, see CREATE USER  [create_user(7)]	 and  psql(1)
       for  discussions	 of  potential	problems  and  error  messages.	  The
       database server must be	running	 at  the  targeted  host.  Also,  any
       default	connection  settings  and  environment	variables used by the
       libpq front-end library will apply.

EXAMPLES
       To create a user joe on the default database server:

       $ createuser joe
       Is the new user allowed to create databases? (y/n) n
       Shall the new user be allowed to create more new users? (y/n) n
       CREATE USER


       To create the same user joe using the server on host eden, port	5000,
       avoiding the prompts and taking a look at the underlying command:

       $ createuser -p 5000 -h eden -D -A -e joe
       CREATE USER "joe" NOCREATEDB NOCREATEUSER
       CREATE USER


SEE ALSO
       dropuser(1), CREATE USER [create_user(7)]



Application			  2008-01-03			CREATEUSER(1)