Shell Programming and Scripting

Hi all,

I need a big help. I've a requirment which should be done in awk scripting only..
My requirment is:

In below file, there are some lines started with 'master replica:'.
i want to get the exact word in that line which should be before '@', and i've to create a file with these names line by line. Either the input file may contain multiple replicas or it may has only original replica.. But any of these both cases, it must contain the original replica..
Ex o/p:
replica1
replica2
original
*******************Sample File Contents*******************
replica "<replica1>"
2006-10-10T06:02:36+10 by Clearcase Admin Acct - xxxxxxx; xxxxxxx [xxxxxxx] (xxxxxxx@main_server)
"Replica for stm VOB /vobs/<vob_name>"
replica type: unfiltered
master replica: <replica1>@/vobs/<vob_name>
owner: vobadmin
group: xxxxxxxxx
host: "<replica_server1>"
identities: preserved
permissions: preserved
feature level: unknown
connectivity: connected
replica "<replica2>"
2006-10-10T06:02:36+10 by Clearcase Admin Acct - xxxxxxx; xxxxxxx [xxxxxxx] (xxxxxxx@main_server)
"Replica for stm VOB /vobs/<vob_name>"
replica type: unfiltered
master replica: <replica2>@/vobs/<vob_name>
owner: vobadmin
group: xxxxxxxxx
host: "<replica_server2>"
identities: preserved
permissions: preserved
feature level: unknown
connectivity: connected
replica "original"
2005-11-02T22:51:59+11 by ************* (***-**-*-@/**/*/*/*/)
"<Original_replica>"
replica type: unfiltered
master replica: original@/vobs/<vob_name>
request for mastership: enabled
owner: laserdev
group: xxxxxxxxx
host: "<main_server_alias>"
identities: preserved
permissions: preserved
feature level: 4
connectivity: connected
***************************************************
So It means that, the script should create a file with all replica names like in above mentioned example and it has to return (as an o/p) the host parameter of original replica.
For example, there is a replica with "original" name (see below for example), so under that original replica, there is a line which start with "host:", I want to get that <main_server_alias> name as a o/p of the script.
*****************example one*************
replica "original"
2005-11-02T22:51:59+11 by ************* (***-**-*-@/**/*/*/*/)
"<Original_replica>"
replica type: unfiltered
master replica: original@/vobs/<vob_name>
request for mastership: enabled
owner: laserdev
group: xxxxxxxxx
host: "<main_server_alias>" ------> I want to get this <main_server_alias> name as a o/p of the script
identities: preserved
permissions: preserved
feature level: 4
connectivity: connected
*************************************

Can anyone please help on this? It'll very helpful for me..
Thank you to everyone for providing great steps for my queries..
Please let me know for any queries/doubts on this...

Thanks in advance..
Regards,
Raghu

Why only awk?
And not quite clear what you want but hope this helps...

Code:

awk -F":|@" '/master replica/{gsub("[ |<|>]","",$2);printf $2}/host/{gsub("[ |<|>]","",$2);printf "\t"$2"\n"}' infile

Hi, thank you vm for your reply..

As per our comany policies, we have to use awk scripting only..
And the given command is giving some syntax errors, can you please help?

$ awk -F":|@" '/master replica/{gsub("[ |<|>]","",$2);printf $2}/host/{gsub("[ |<|>]","",$2);printf "\t"$2"\n"}' cctpl.log #This file is attached in this thread#
awk: syntax error near line 1
awk: illegal statement near line 1
awk: syntax error near line 1
awk: illegal statement near line 1
$


Actually i want to create a file with all replicas in the input file like below,
---------
replica1
replica2
...
..
..
original
---------
At any cost, the input file must have one 'original' replica..

And the script has to return a value (which is coloured in red below) as an o/p under this original replica..

*****************example one*************
replica "original"
2005-11-02T22:51:59+11 by ************* (***-**-*-@/**/*/*/*/)
"<Original_replica>"
replica type: unfiltered
master replica: original@/vobs/<vob_name>
request for mastership: enabled
owner: laserdev
group: xxxxxxxxx
host: "<main_server_alias>" ---> I want to get this <main_server_alias> name as a o/p of the script
identities: preserved
permissions: preserved
feature level: 4
connectivity: connected
*************************************

I hope, you are clear in my requirment now..
Thank you vm again for your help on this...
Please let me know for any queries on this..

Regards,
Raghu

sorry.. attached the input file now...

Thanks in advance again..

use nawk instead of awk...

Code:

nawk -F":|@" '/master replica/{gsub("[ |<|>]","",$2);printf $2}/host/{gsub("[ |<|>]","",$2);printf "\t"$2"\n"}' cctpl.log

great thanks malcom...

It's working and i got my required o/p...

Thank you so much..
I've to learn awk soon, it's very powerful tool...