From owner-cvs-all  Mon Aug 30 11:54:14 1999
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From: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net>
Message-Id: <199908301852.LAA66286@gndrsh.dnsmgr.net>
Subject: Re: cvs commit: src/bin/mkdir mkdir.1 mkdir.c
In-Reply-To: <19990830082157.A89944@wopr.caltech.edu> from Matthew Hunt at "Aug 30, 1999 08:21:57 am"
To: mph@astro.caltech.edu (Matthew Hunt)
Date: Mon, 30 Aug 1999 11:52:32 -0700 (PDT)
Cc: mark@grondar.za (Mark Murray),
	billf@jade.chc-chimes.com (Bill Fumerola),
	mharo@FreeBSD.org (Michael Haro), cvs-committers@FreeBSD.org,
	cvs-all@FreeBSD.org
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> On Mon, Aug 30, 1999 at 08:19:55AM +0200, Mark Murray wrote:
> 
> > EG- A couple of years ago, someone wanted date(1) to not put a \n at
> > the end of its output (for whatever reason), and he added a new -n
> > flag to do it. Canonical UNIX method to do this is
> > 
> > $ echo -n `date`
> 
> Which is, of course, not quite the same as omitting the newline.
> 
> The output of date(1) can contain multiple sequential spaces.  After
> being split into arguments, and recombined by echo(1), they'll be
> reduced to one space.
> 
> wopr:~$ date -r 800000
> Fri Jan  9 22:13:20 PST 1970
> wopr:~$ echo -n `date -r 800000`; echo
> Fri Jan 9 22:13:20 PST 1970
> 
> Of course, I don't really have any need to get the output of date(1)
> without the newline, but I could do something like this...
> 
> wopr:~$ date -r 800000 | perl -pe 'chomp'
> Fri Jan  9 22:13:20 PST 1970wopr:~$ 

Ever heard of ``IFS=''?  Invoking perl to handle what can easily
been done within the shell itself is expensive.


-- 
Rod Grimes - KD7CAX - (RWG25)                    rgrimes@gndrsh.dnsmgr.net


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