From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
From: Ralph Corderoy <ralph@inputplus.co.uk>
Message-ID: <27a4.3e5fba41.a4a2b@blake.inputplus.co.uk>
References: <001301c2df26$de171080$2a8be793@gli.cas.cz>
Subject: Re: [9fans] \n\n\n  to  \n\n
Date: Mon,  3 Mar 2003 10:08:59 +0000
Topicbox-Message-UUID: 76adafc6-eacb-11e9-9e20-41e7f4b1d025

Hi pac,

> i don't know how to translate triple newlines into double ones.
> i tried tr \n to something else and then sed,

You could do it with sed.  awk does just as well for a throw-away
one-liner.

    awk '{c = c * !length * (c != 3) + !length} c < 3'

> however, sed doesn't like long lines :-(

Use GNU sed!

Cheers,

-- 
Ralph Corderoy.      http://inputplus.co.uk/ralph/     http://troff.org/