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Removing sections from listener.ora

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Top Forums Shell Programming and Scripting Removing sections from listener.ora
# 1  
Old 10-25-2015
Wrench Removing sections from listener.ora
Hi,
I am trying to write a script or command to add/remove a section from listener.ora file

in the following example I would like:
1. to remove sid_alias2 sections
2. to add a new alias sections called sid_alias4, it can be placed after sid_alias3 sections

Code:
$ cat listener.ora

SID_LIST_LISTENER=
        (SID_LIST=
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1_DGB)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias2)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias2)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias2)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias2_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias2)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias2_DGB)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3_DGB)
                )
        )


$ sed ...
$ cat listener.ora        

SID_LIST_LISTENER=
        (SID_LIST=
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1_DGB)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3_DGB)
                )
        )

$ sed ...
$ cat listener.ora

SID_LIST_LISTENER=
        (SID_LIST=
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1_DGB)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3_DGB)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias4)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias4)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias4)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias4_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias4)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias4_DGB)
                )
        )

Thanks
Yossi
# 2  
Old 10-25-2015
Any attempt from your side?
# 3  
Old 10-25-2015
This is more complicated for me,
since the parsing is in the middle Smilie

---------- Post updated at 04:55 PM ---------- Previous update was at 03:47 PM ----------

I managed to partially remove rows, this way:

Code:
$ sed '/sid_alias2/,/sid_alias2/d' listener.ora
SID_LIST_LISTENER=
        (SID_LIST=
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias1)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias1_DGB)
                )
                (SID_DESC=
                )
                (SID_DESC=
                )
                (SID_DESC=
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=sid_alias3)
                        (ORACLE_HOME=/oracle/product/12.1.0.2/dbhome_1)
                        (GLOBAL_DBNAME=sid_alias3_DGB)
                )
        )

# 4  
Old 10-25-2015
Would it be sufficient to substitute sid_alias2 by sid_alias4:
Code:
sed 's/sid_alias2/sid_alias4/' listener.ora

?
# 5  
Old 10-25-2015
There are some scenarios
1. adding sid_alias4
2. removing exiting sid_alias2
3. replacing sid_alias2 to sid_alias4

the data in each section can contain different data (not so templated)

I think to cover all possibilities it is better to remove & add

---------- Post updated at 05:54 PM ---------- Previous update was at 05:52 PM ----------

trying unsuccessfully Smilie

Code:
$ sed -e "/(SID_DESC=\n.*sid_alias2/,/sid_alias2_DGB)\n)$/d" listener.ora

# 6  
Old 10-25-2015
If the new data to be inserted differ from the other entries, how do we know what to insert? Where do we get the data from?
# 7  
Old 10-25-2015
Thanks for you help untill now ..

The new data will use variables sent from other function/script
I tried to make it simple, the idea will be to add/remove/change the following block (in the proper location)

Code:
                (SID_DESC=
                        (SID_NAME=${sid_alias})
                        (ORACLE_HOME=${DB_HOME})
                        (GLOBAL_DBNAME=${sid_alias})
                )
                (SID_DESC=
                        (SID_NAME=${sid_alias})
                        (ORACLE_HOME=${DB_HOME1)
                        (GLOBAL_DBNAME=${sid_alias}_DGMGRL)
                )
                (SID_DESC=
                        (SID_NAME=${sid_alias})
                        (ORACLE_HOME=${DB_HOME)
                        (GLOBAL_DBNAME=${sid_alias}_DGB)
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