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Top Forums Shell Programming and Scripting Shell Script to ignore # and take corresponding user and group Post 302580339 by methyl on Thursday 8th of December 2011 07:41:55 AM
Old 12-08-2011
This is the same format file as before but with an awkward header section.
We can jump the header section with "sed" and start from the first line starting with "role".
Code:
Minor change to original code:
sed -n '/^role/,$ p' filename.txt | grep -v \^\#"role" |  .... etc

 
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DROP 
ROLE(7) SQL Commands DROP ROLE(7) NAME
DROP ROLE - remove a database role SYNOPSIS
DROP ROLE [ IF EXISTS ] name [, ...] DESCRIPTION
DROP ROLE removes the specified role(s). To drop a superuser role, you must be a superuser yourself; to drop non-superuser roles, you must have CREATEROLE privilege. A role cannot be removed if it is still referenced in any database of the cluster; an error will be raised if so. Before dropping the role, you must drop all the objects it owns (or reassign their ownership) and revoke any privileges the role has been granted. The REASSIGN OWNED [reassign_owned(7)] and DROP OWNED [drop_owned(7)] commands can be useful for this purpose. However, it is not necessary to remove role memberships involving the role; DROP ROLE automatically revokes any memberships of the target role in other roles, and of other roles in the target role. The other roles are not dropped nor otherwise affected. PARAMETERS
IF EXISTS Do not throw an error if the role does not exist. A notice is issued in this case. name The name of the role to remove. NOTES
PostgreSQL includes a program dropuser [dropuser(1)] that has the same functionality as this command (in fact, it calls this command) but can be run from the command shell. EXAMPLES
To drop a role: DROP ROLE jonathan; COMPATIBILITY
The SQL standard defines DROP ROLE, but it allows only one role to be dropped at a time, and it specifies different privilege requirements than PostgreSQL uses. SEE ALSO
CREATE ROLE [create_role(7)], ALTER ROLE [alter_role(7)], SET ROLE [set_role(7)] SQL - Language Statements 2010-05-14 DROP ROLE(7)

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