On Mon, 2010-06-28 at 03:56 +0100, Ralph Corderoy wrote:
> Hi Peter,
>
> > > > temp2: +36.0°C (low = +127.0°C, high = +70.0°C) sensor =
> > > > thermistor
> > >
> > > Core 1 Temp: ${execi 8 sensors | sed -n '/^temp2: */{s///; s/
> > > .*//p;}'}
> >
> > Well, I don't understand the last dozen or so characters, but it
> > works.
>
> With sed, some commands operate on the specified, or addressed, lines,
> with the default being every line if no address is given, e.g. the
> common
>
> sed s/foo/bar/g
>
> substitutes on every line the occurrence of the regular expression `foo'
> with the string `bar', globally, by which I mean every occurrence on the
> line, not just the first.
>
> 1,5s/foo/bar/3
>
Immediately, a Light bulb moment- It hadn't clicked that sed is somehow
related to ed, that I used to use years ago.
I chucked out a book on basic editing in unix a few weeks ago.
Peter
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