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Top Forums Shell Programming and Scripting Grep word after last occurance of string and display next few lines Post 302877407 by Don Cragun on Saturday 30th of November 2013 11:10:18 PM
Old 12-01-2013
Quote:
Originally Posted by nes
Hi,

I wanted to grep string "ERROR" and "WORNING" after last occurrence of String "Starting" only and wanted to display two lines after searched ERROR and WORNING string and one line before. I have following cronjob log file "errorlog" file and I have written the code for same in Unix as below and working fine but not able to implement it in SunSolari.

Please find errorlog file as below :

Code:
it is Starting 
line1
line2
ERROR
line3
line4

it is Starting
line5
ERROR
line6
line7

it is Starting
line8
WARNING
line8.8
line8.9
line9
ERROR
line10
line11

Expected output something like as follow :

Code:
line8
WARNING
line8.8

line9
ERROR
line10

Following code is working in UNIX/LINUX but not working in SunSolari

Code:
ERROR="ERROR:"
WARNING="WARNING" 
 ERR=$ERROR"\|"$WARNING

awk  '/Starting/{if(b) exit; else b=1}1' $filename | grep -A3 -in "$ERR"

Please advise Smilie
Could you please give me one example of a UNIX/LINUX system where the above sequence of commands produces the expected output you showed us above when given the sample errorlog file you provided above as input?

I would expect the above code to display a subset of the text starting with the 1st line of the file and ending on the line before the 2nd line in the file that contains the string "Starting"; not a subset of the text starting with the last occurrence of the string "Starting" and ending at the end of the file.
 

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shishi_tgs_krberror_der(3)					      shishi						shishi_tgs_krberror_der(3)

NAME
shishi_tgs_krberror_der - API function SYNOPSIS
#include <shishi.h> int shishi_tgs_krberror_der(Shishi_tgs * tgs, char ** out, size_t * outlen); ARGUMENTS
Shishi_tgs * tgs structure that holds information about TGS exchange char ** out output array with newly allocated DER encoding of KRB-ERROR. size_t * outlen length of output array with DER encoding of KRB-ERROR. DESCRIPTION
DER encode KRB-ERROR. out is allocated by this function, and it is the responsibility of caller to deallocate it. RETURN VALUE
Returns SHISHI_OK iff successful. REPORTING BUGS
Report bugs to <bug-shishi@gnu.org>. COPYRIGHT
Copyright (C) 2002-2010 Simon Josefsson. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. SEE ALSO
The full documentation for shishi is maintained as a Texinfo manual. If the info and shishi programs are properly installed at your site, the command info shishi should give you access to the complete manual. shishi 1.0.1 shishi_tgs_krberror_der(3)
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