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Full Discussion: ksh : need to get the 4 th line above and 2 nd below the matched pattern in the log file
Top Forums Shell Programming and Scripting ksh : need to get the 4 th line above and 2 nd below the matched pattern in the log file Post 302861773 by rpm120 on Wednesday 9th of October 2013 03:33:06 PM
Old 10-09-2013
Quote:
Originally Posted by Akshay Hegde
Try

Code:
$ cat log 
012/01/21 10:29:02  (111111)  Processing Job '23_369468343464564'
     2012/01/21 10:29:02  (111111)
     Making Job '23_369468343464564.0'...
     2012/01/21 10:29:04 (111111)
     Jobnumber '23_369468343464564' was successful 
     2012/01/21 10:29:04  (111111) 
Job has 123 Docs 234 Pgs 456 Lines 4 Errors
     2012/01/21 10:29:04  (111111)
     Total in Job: 123 documents using 29 KBytes

Code:
$ awk '/Processing/{j=$0}/^Job.*Errors$/{printf j RS  $0 RS}' OFS=\\t log 
012/01/21 10:29:02  (111111)  Processing Job '23_369468343464564'
Job has 123 Docs 234 Pgs 456 Lines 4 Errors

Thanks for your solution.

As of my understanding you code matches the specific pattern and gets the required line. This works perfectly when these pattern appear constantly every time in the log.

But in my scenario its like only this line - Jobnumber '23_369468343464564' was successful appears constanly every time whereas the fourth line above that and the second line after that line are not always same.
So in order get these two lines (4th line above & 2th line below) every time, for that matter what ever patterns it may be I thought of achieving it in this way.

Hope I am clear about the problem statement.
 

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LEARN ABOUT V7

suspend

suspend(1)                                                         User Commands                                                        suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                         suspend(1)
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