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From: jik@athena.mit.edu (Jonathan I. Kamens)
Newsgroups: comp.unix.shell
Subject: Re: help me do grep
Message-ID: <1991Feb25.220449.19719@athena.mit.edu>
Date: 25 Feb 91 22:04:49 GMT
References: <CSHORT.91Feb25135745@haywire.nmsu.edu>
Sender: news@athena.mit.edu (News system)
Distribution: comp
Organization: Massachusetts Institute of Technology
Lines: 32

You could do something like this:

#!/bin/sh

if [ $# -ne 2 ]; then
	echo "Usage: $0 pattern filename"
	exit 1
fi

AWK='BEGIN { doprint = 0
	record = ""
}
/\/\/\// { if (doprint) { printf("%s", record) }
	record = ""
	doprint = 0
	next
}
/'$1'/ { doprint = 1 }
{ record = record $0 "\n" }'

awk "$AWK" $2

If you only want to compare your pattern to a certain line of the entry, then
you can count entry lines as you go along and only set doprint to true if the
pattern matches *and* the current line number is the line of the entry against
which you want to compare.

-- 
Jonathan Kamens			              USnail:
MIT Project Athena				11 Ashford Terrace
jik@Athena.MIT.EDU				Allston, MA  02134
Office: 617-253-8085			      Home: 617-782-0710


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