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Top Forums Shell Programming and Scripting Gawk Find Pattern Print Lines Before and After Post 302869995 by Scrutinizer on Thursday 31st of October 2013 05:14:32 PM
Old 10-31-2013
Try:
Code:
gawk 'c-->0; {p=p RS $0}; $0~s{print p; c=A} NR>=B{sub(/[^\n]*\n/,x,p)}' IGNORECASE=1 A=10 B=10 s='date: 2013-10-30' file


--
IGNORECASE is used because the OP's example was using the -i option and is looking for a GNU awk example...

Last edited by Scrutinizer; 10-31-2013 at 10:38 PM.. Reason: Corrected A and B, thanks RudiC
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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