db.login.1grass man page

db.login — Sets user/password for DB driver/database.

Keywords

database, connection settings

Synopsis

db.login
db.login --help
db.login [-p] driver=name database=name [user=string] [password=string] [host=string] [port=string] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags

-p
Print connection settings and exit
--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters

driver=name [required]
Name of database driver
Options: mesql, pg, dbf, sqlite, odbc, ogr, mysql
Default: sqlite
database=name [required]
Name of database
Default: $GISDBASE/$LOCATION_NAME/$MAPSET/sqlite/sqlite.db
user=string
Username
password=string
Password
host=string
Hostname
Relevant only for pg and mysql driver
port=string
Port
Relevant only for pg and mysql driver

Description

db.login sets login parameters such an user name and optionally also a password, a hostname or a port for the connection to the selected database through the DB driver.

Note

Options host and port are related to only SQL database backends like PostgreSQL, MySQL or ODBC.

Note that the passwords are stored in a hidden, unencrypted file in the user account, specifically

·
in the ’home’ directory, i.e. $HOME/.grass7/dblogin (Unix-like systems)
·
%APPDATA%/GRASS7/dblogin (MS-Windows)

Only the file owner can access this file.

Examples

Only username specified (assuming locally accessible PostgreSQL DB without password):

db.login driver=pg database=mydb

Username, password and hostname specified (note that the command lines history will store the password in this way):

db.login driver=pg database=mydb user=bacava password=secret host=db.example.com

Username and empty password specified:

db.login driver=pg database=mydb user=bacava password=""

See Also

db.connect, db.test, db.tables

SQL support in GRASS GIS

Author

Radim Blazek
Support for hostname and port by Martin Landa, OSGeoREL, Czech Technical University in Prague, Czech Republic

Last changed: $Date: 2016-02-06 16:25:05 +0100 (Sat, 06 Feb 2016) $

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© 2003-2016 GRASS Development Team, GRASS GIS 7.0.4 Reference Manual

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GRASS 7.0.4 Grass User's Manual