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Removing section from tnsnames.ora

 
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Old 10-25-2015
Wrench Removing section from tnsnames.ora
Hi,
I am trying to write a script or command to remove a section from tnsnames.ora file

in the following example I would like to remove tns_alias2 section

Code:
$ cat tnsnames.ora
tns_alias1 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = host1 )(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = service1)
    )
  )

tns_alias2 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = host2 )(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = service2)
    )
  )

tns_alias3 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = host3 )(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = service3)
    )
  )

$ sed ......

$ cat tnsnames.ora
tns_alias1 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = host1 )(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = service1)
    )
  )

tns_alias3 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = host3 )(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = service3)
    )
  )

any ideas ?
 
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LEARN ABOUT CENTOS

radsqlrelay

RADSQLRELAY(8)						     FreeRADIUS helper program						    RADSQLRELAY(8)

NAME

       radsqlrelay - relay SQL queries to a central database server

SYNOPSIS

       radsqlrelay [-?]  [-d sql_driver] [-b database] [-f file] [-h host] [-u user] [-P port] [-p password] [-1] [-x] file_path

DESCRIPTION

       radsqlrelay  tails a SQL logfile and forwards the queries to a database server. Used to replicate accounting records to one (central) data-
       base, even if the database has extended downtime.

       The SQL logfile is created by the rlm_sql_log module. The module must be configured in the radiusd server before you can use radsqlrelay.

OPTIONS

       -?     Print usage help information.

       -d sql_driver
	      Driver to use: mysql, pg, oracle.

       -b database
	      Name of the database to use.

       -f file
	      Read password from file, instead of command line.

       -h host
	      Connect to host.

       -u user
	      User for login.

       -P port
	      Port number to use for connection.

       -p password
	      Password to use when connecting to server.

       -1     One-shot mode: push the file to database and exit.

       -x     Turn on debugging.

       file_path
	      The pathname of the SQL logfile to use.

NOTES

   Oracle driver
       The command "radsqlrelay -d oracle -b db.domain.tld sql-relay" reads the database description stored in $TNS_ADMIN/tnsnames.ora:

       db.domain.tld =
	 (DESCRIPTION =
	   (ADDRESS_LIST =
	     (ADDRESS = (PROTOCOL = TCP)(HOST = db.domain.tld)(PORT = 1521))
	   )
	   (CONNECT_DATA =
	     (SERVICE_NAME = <DB SID>)
	   )
	 )

SEE ALSO

       rlm_sql_log(5)

AUTHOR

       Nicolas Baradakis <nicolas.baradakis@cegetel.net>

								   19 June 2005 						    RADSQLRELAY(8)