[nSLUG] April Tech Talk

Oliver Doepner odoepner at gmail.com
Fri Apr 17 20:26:11 ADT 2015

Regarding tail -f:

I find the "follow" mode of less even better:

On Fri, Apr 17, 2015 at 4:08 PM, Mike Spencer <mspencer at tallships.ca> wrote:

> Hello all --
> Y'all will probably understand why I don't slog out the road in
> snow/mud time and drive 70 miles into city rush hour traffic for a
> short meet.
> But thank you very much for the PDF notes.
> In particular, thanks for the explanation of diff(1) output (and
> pointer to more extensive explanation, too).  I've known for decades
> what diff *does* but human interpretation of the output is sadly
> missing from the manpage and was always confusing for me.  Typically,
> I don't need to update a huge file.c but just check to see if two
> versions of some text file have important differences.  I'm now
> enlightened (or will be after I've re-read the material a few
> times. :-)
> I might add a note which you may have covered in the talk but omitted
> in the PDF.  Only recently someone clued me (maybe here on NSLUG?) to
> the -f option to tail(1).  I'm still on dialup, one of my ISPs
> recently transferred its server & telecom support from Telus to
> Fibernetics and everything went to pieces.  "tail -f" proved to be
> very useful for watching a log file as pppd(8) tried unsuccessfully to
> complete LCP with the access server.  I can easily imagine other
> occasions where monitoring additions to a log file in an xterm could
> be handy.
> Tnx,
> - Mike
> --
> Michael Spencer                  Nova Scotia, Canada       .~.
>                                                            /V\
> mspencer at tallships.ca                                     /( )\
> http://home.tallships.ca/mspencer/                        ^^-^^
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Oliver Doepner
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