[Tutor] *nix tail -f multiple log files with Thread

[David]

Bill Campbell wrote:
> On Mon, Feb 16, 2009, David wrote:
>   
>> Bill Campbell wrote:
>>     
>>> The ``swatch'' program, written in perl, does this by using the
>>> gnu-tail program via a pipe using.
>>>
>>> 	gtail --follow=name --lines=1 file1 file2 ...
>>>
>>> Use the source Luke.
>>>
>>>       
> ...
>   
>> That looks like the right tool for the job at hand. Looking at setting
>> up the configuration file, a stumbling block in my learning to program
>> is my lack of a good understanding of regular expressions. I have
>> started studying grep, sed and awk. It is a lot more fun to just write
>> little python programs and watch in amazement when they work as
>> expected. I have been avoiding this phase of learning.
>>     
>
> Looking at other people's scripts can be very enlightening.  When I started
> learning Xenix in 1982, there were about 2 books on the subjects, Jean
> Thompson's blue one, and I forget the other.  I learned a lot by reading
> system administration scripts, once I figured out that these were working
> programs.
>
> One of the best books I've ever seen for general *nix text processing and
> use of tools is ``Unix Text Processing'' by Dougherty and O'Reilly.  It has
> been out of print for years, but can probably be found through
> bookfinder.com It has lots on regular expressions, using ``vi'', etc.
>
> There is information on regular expressions in any book on python, perl,
> and other scripting languages.  O'Reilly has a book ``Mastering Regular
> Expressions'' which is probably pretty good, but I have never read it.
>
> Bill
>   
OK, I found ``Unix Text Processing`` for $5 and I did start ``Mastering
Regular Expressions so I have the material, now I just need a
photographic memory to speed the process up :)
-david

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