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Top Forums Shell Programming and Scripting String search between patterns using sed Post 302787381 by raytx on Friday 29th of March 2013 10:56:24 AM
Old 03-29-2013
Quote:
Originally Posted by Scrutinizer
Try with GNU awk (or mawk):
Code:
gawk '/487/{print "+++" $0}' RS='\+\+\+' ORS= file

With regular awk you could try
Code:
awk '/487/{print "+++" $0}' RS=+ ORS= file

But that would break if there is so much as a single +-sign in the record.
You could try replacing the +++ with a single character first if you know for sure that it will not occur in the text.
Code:
sed 's/^+++/|/' file | awk '/487/{print "+++" $0}' RS=\| ORS=

Anyway, probably best to use something like this:
Code:
awk '/487/{f=1} /^\+\+\+/{ if(f)print s ; f=0; s=$0; next } {s=s RS $0} END{ if(f)print s }' file

--
@Bakunin: very nice, but it would not work for the last record in the file.
@Yoda: also would not work for the last record and it prints the next "+++ header"..
Thanks for the help and nice catch on the others not grabbing that last line. This seems to be working for me, so I can build around it.
Appreciate the help!

Ray
 

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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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