[clug] Help explaining a sed command to delete last 10 lines from a file

Michael Ellerman michael at ellerman.id.au
Tue Jan 14 20:24:42 MST 2014

On Tue, 2014-01-14 at 18:03 +1100, steve jenkin wrote:
> Alternatively, I could just look for the Message ID header :)
> Those should be unique.

You would think.

I have a fair bit more mail than you, but I find that some of my messages don't
even have Message ID headers.


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