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Date: Thu, 19 Feb 2015 18:10:36 -0700 (MST)
From: Warren Block <wblock@wonkity.com>
To: Julian Elischer <julian@freebsd.org>
Subject: Re: default pager (csh)
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On Thu, 19 Feb 2015, Julian Elischer wrote:

> On 2/18/15 3:41 PM, Xin Li wrote:
>> 
>> The _only_ reason that I can think of is that more(1) does not clear
>> screen for certain terminals (done with 'ti' and 'te' sequences),
>> while less(1) when running as less does.
>> 
>> The less(1) behavior can be annoying to some people (sometimes even
>> myself when using less to show contents of a file and ^Z to paste
>> them), and unfortunately quite a few of them also happen to be the
>> more vocal ones when it comes to a change.
>
> I find that behaviour infuriating
>
> I page down to a place to get some text on the screen to use as  a reference, 
> then exit to run a command with that information, and *bam* the info I wanted 
> to use has gone away.

It doesn't do that on csh.  Or maybe I figured out how to prevent it 
long ago and forgot, but all I use is this:

setenv  PAGER   "less -RS"