DROPUSER(1) PostgreSQL 9.3.2 Documentation DROPUSER(1)NAMEdropuser - remove a PostgreSQL user account
SYNOPSISdropuser [connection-option...] [option...] [username]
DESCRIPTIONdropuser removes an existing PostgreSQL user. Only superusers and users
with the CREATEROLE privilege can remove PostgreSQL users. (To remove a
superuser, you must yourself be a superuser.)
dropuser is a wrapper around the SQL command DROP ROLE (DROP_ROLE(7)).
There is no effective difference between dropping users via this
utility and via other methods for accessing the server.
OPTIONSdropuser accepts the following command-line arguments:
Specifies the name of the PostgreSQL user to be removed. You will
be prompted for a name if none is specified on the command line and
the -i/--interactive option is used.
Echo the commands that dropuser generates and sends to the server.
Prompt for confirmation before actually removing the user, and
prompt for the user name if none is specified on the command line.
Print the dropuser version and exit.
Do not throw an error if the user does not exist. A notice is
issued in this case.
Show help about dropuser command line arguments, and exit.
dropuser also accepts the following command-line arguments for
-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 extension
on which the server is listening for connections.
-U username, --username=username
User name to connect as (not the user name to drop).
Never issue a password prompt. If the server requires password
authentication and a password is not available by other means such
as a .pgpass file, the connection attempt will fail. This option
can be useful in batch jobs and scripts where no user is present to
enter a password.
Force dropuser to prompt for a password before connecting to a
This option is never essential, since dropuser will automatically
prompt for a password if the server demands password
authentication. However, dropuser will waste a connection attempt
finding out that the server wants a password. In some cases it is
worth typing -W to avoid the extra connection attempt.
PGHOST, PGPORT, PGUSER
Default connection parameters
This utility, like most other PostgreSQL utilities, also uses the
environment variables supported by libpq (see Section 31.14,
“Environment Variables”, in the documentation).
In case of difficulty, see DROP ROLE (DROP_ROLE(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.
To remove user joe from the default database server:
$ dropuser joe
To remove user joe using the server on host eden, port 5000, with
verification and a peek at the underlying command:
$ dropuser-p 5000 -h eden -i -e joe
Role "joe" will be permanently removed.
Are you sure? (y/n) y
DROP ROLE joe;
SEE ALSOcreateuser(1), DROP ROLE (DROP_ROLE(7))
PostgreSQL 9.3.2 2013 DROPUSER(1)