Path: utzoo!attcan!uunet!cbmvax!ditto
From: ditto@cbmvax.UUCP (Michael "Ford" Ditto)
Newsgroups: comp.unix.wizards
Subject: Re: This is strange...
Summary: needs trailing newline
Keywords: sed awk pipe
Message-ID: <5570@cbmvax.UUCP>
Date: 23 Dec 88 01:59:48 GMT
References: <1652@ektools.UUCP>
Reply-To: ditto@cbmvax.UUCP (Michael "Ford" Ditto)
Organization: Commodore Technology, West Chester, PA
Lines: 19

In article <1652@ektools.UUCP> mcapron@ektools.UUCP (M. Capron) writes:
>CODE A: This works.
>incs=`egrep '^#[         ]*include[     ]*"' $i | awk '{printf "%s ", $2}'`
>incs=`echo "$incs" | sed 's/"//g'`
>
>CODE B: This does not work.
>incs=`egrep '^#[         ]*include[     ]*"' $i | awk '{printf "%s ", $2}' | sed 's/"//g'`
>
>With CODE B, $incs comes out to be nil.

echo outputs a newline after its arguments, while your awk program won't.
sed only processes lines that are properly newline-terminated.
-- 
					-=] Ford [=-

"The number of Unix installations	(In Real Life:  Mike Ditto)
has grown to 10, with more expected."	ford@kenobi.cts.com
- The Unix Programmer's Manual,		...!sdcsvax!crash!elgar!ford
  2nd Edition, June, 1972.		ditto@cbmvax.commodore.com