Re: change paragraphs to long lines

On Mon, 4 Nov 2013 22:36:41 -0800, George Georgalis <[email protected]>
wrote:

> Hello sed list, hope you are all well.
> 
> Long time subscriber but I've not been following lately, hope this hasn't
> come up recently.
> 
> I have a file with double returns to denote paragraphs. I'd like to retain
> the double returns but join all the other lines, so paragraphs have long
> lines.
> 
> 
> so this:
> one two three one two three one two three one
> two three one two three one two three one two
> three one two three one two three one two
> 
> one two three one two three one two three one
> two three one two three one two three one two
> three one two three one two three one two
> 
> changes to this:
> one two three one two three one two three one two three one two three one
> two three one two three one two three one two three one two
> 
> one two three one two three one two three one two three one two three one
> two three one two three one two three one two three one two
> 
> Maybe this solution would good for the sed1line file?

A simple way would be (gnu sed)

sed ':a; $!{N;ba;}; s/\n\n/\x1/g; s/\n/ /g; s/\x1/\n\n/g'

or without slurping the file:

sed ':a; $b; N; /\n$/b; s/\n/ /; ba'


-- 
D.