Re: sed: dot does not match newline in multi-line mode (the M modifier) - bug or feature?

[Paolo Bonzini]

On 11/23/2011 11:15 AM, Dmitry Bolshakov wrote:
> Hi
>
> $ sed --version | head -n1
> GNU sed version 4.2.1
>
> test command:
>
> $ echo $'line1\nline2\nline3' | sed -n '1h;1!H;$bend;b; :end g;s/.*/dot
> matches newline/;p; g;s/.*/dot does not match newline/M;p'
> dot matches newline
> dot does not match newline
> line2
> line3
>
> I could not find anything about such behaviour in manual
> is this bug or feature?

It's a feature, but an undocumented one indeed.  Thanks for the report.

Paolo