[kwlug-disc] Scripting in Linux and unit.d

Colin K colin at void11.com
Tue Jan 10 11:54:42 EST 2012


Thanks john i was thinking of some kind of ugly grep thing that would pull
out the lines that start with
[SEVERE] and dump them into a file worst case but this could certainly do
me a solid favor.  I would like to be able to seperate the server stuff
from the user related things too but that might be a bit more complex
filtration.
The directory structure goes something like this
/ServerRoot/Server.log
Than
/ServerRoot/Plugins/PluginConfigurationDir/pluginspecifics.yml
If i could split the server.log to dump
[SEVERS] into a /ServerRoot/Important.log
the player stuff into /ServerRoot/Users.log
the users stuff would have to probably detect a username and add it to a
filter dynamically to automatically filter usernames and dump anything
containing that kind of string into Users.log
and finally possibly.
/ServerRoot/plugins/PluginFolder/Plugin.log

This would be quite an elegant solution if at all possible but I will look
into seeing how much of this i can do myself once i get home.  But i like
good logs and i cannot lie. :D

On Tue, Jan 10, 2012 at 9:15 AM, John Van Ostrand <john at netdirect.ca> wrote:

> Hi Colin,
>
> Although it matters how you want to split the minecraft log, perl was
> meant for this very purpose. You might also look at logrotate if you want
> to split on date/size. It does it automatically, just create a file in
> /etc/logrotate.d.
>
> If you want to split lines you may be able to do so depending on how
> minecraft writes logs.
>
> It may be using syslog functionality so modifying /etc/rsyslog.conf may
> reduce the amount of stuff in the file or be able to split it based on log
> level (info, debug, crit, emerg.)
>
> If it is using syslog and because of how it's using syslog I can't split
> it the way I want I write a filter and configure syslog to pipe to it
> through a named pipe.
>
> If you can't control how it writes logs then you'll have to manually
> process the file on regular intervals. Logrotate does this on size or date
> easily.
>
> A perl script like this is a start
>
> #!/usr/bin/perl
> #
> # Filter log file
> #
> # usage: myscript logfile
>
> while (<>) {
>  # match text in lines
>  if (/failed login/) {
>     # Do something with it
>  elsif (/new user/) {
>     # do something else
>  }
> }
>
> Awk is also built with this type of functionality, but perl is as well
> suited and has much more flexibility.
>
> To learn perl try http://learn.perl.org/. But you may want to skip the
> "installing" section since perl is installed on almost everything.
>
>
>
> ----- Original Message -----
> > Well since i started this thread i didnt really expect it to take on a
> > life of its own so i almost feel like this is off topic at this point.
> > (dont poke the devs' :P) Anyways bash script looks like it would be
> > lovely a current application that im looking to try and write is
> > something to split a monolithic .log file for my minecraft server im
> > guessing it would require grep and some other such stuff but all of
> > this massive central log is just ugly and painful to sort through.
> > Server isnt even hugely popular yet and its already an 11mb log file.
> > Its fairly important that I can search through it for keywords and
> > retain the logs for some time to help sort out disputes and track
> > staff abuse.
> >
> >
> > This isnt the only application that i've needed through my time on
> > computers but this is the one i need right now.
> >
> >
> > On Mon, Jan 9, 2012 at 11:56 AM, Paul Nijjar < paul_nijjar at yahoo.ca >
> > wrote:
> >
> >
> >
> > On Sun, Jan 08, 2012 at 12:19:25PM -0500, Darcy Casselman wrote:
> > > A gentleman named Albert O'Connor is interested in starting up
> > > WatPy,
> > > a local Python user group. He's tentatively scheduled Wednesday,
> > > February 8 as the date of an initial organizational meeting. I don't
> > > have any other details, but I'll let him know there's interest here.
> >
> > It may be helpful to distinguish "User Group" from "Beginner
> > tutorial/course". That has been my experience with KWLUG, anyways.
> >
> > As some of you know I used the KW Freeskool infrastructure for the
> > Linux Literacy course. That may not reach the demographics you want
> > (and you may not want to be associated with their political
> > affiliation) but they can offer resources if you are interested.
> > http://kwfreeskool.wordpress.com
> >
> > I think both Dive into Python and Learn Python the Hard Way lack
> > sufficient exercises to be really good training materials, so you will
> > have to come up with your own. An interesting mix might be to use one
> > of these books in conjunction with the Project Euler
> > ( http://projecteuler.net ) series of problems.
> >
> > Another book that looks promising is "Building Skills in Python":
> > http://www.itmaybeahack.com/homepage/books/python.html
> >
> > You could also turn to open courseware. Here is a StackExchange
> > post with some good resources:
> >
> >
> http://stackoverflow.com/questions/4463098/where-can-i-find-a-good-online-python-course
> >
> > All of this depends on your audience. It makes a big difference
> > whether you are trying to get experienced programmers up to speed in a
> > language, or whether your are trying to get people to learn
> > programming with Python as the vehicle.
> >
> > Sorry for the wall of text.
> >
> > - Paul
> >
> >
> >
> >
> > >
> > > Darcy.
> > >
> > > On Sun, Jan 8, 2012 at 12:09 PM, Michael Savage < msavage at golden.net
> > > > wrote:
> > > > I am interested.
> > > > Mike
> > > >
> > > >
> > > > On 08/01/2012 3:33 AM, Bob Jonkman wrote:
> > > >>
> > > >> Charles McColm and I were recently bitten by the
> > > >> "We-want-to-be-Python-programmers" bug. On Friday at Ubuntu Hour
> > > >> we met a
> > > >> fellow from London (ON). Sadly, my memory has lost its parity
> > > >> bits and I
> > > >> don't recall his name. Maybe "Mars" on the Ubuntu IRC channel?
> > > >> Anyway, he's
> > > >> a professional Python programmer, and he said he might be willing
> > > >> to come
> > > >> back to guide some of us newbies towards a life of Pythony
> > > >> goodness. He
> > > >> suggested we start with Mark Pilgrim's "Dive Into Python" or Zed
> > > >> A. Shaw's
> > > >> "Learn Python The Hard Way".
> > > >>
> > > >> Is there interest in learning Python within the ranks of KWLUG?
> > > >> All we
> > > >> need is a project to work on... The KWPUG group seems to be
> > > >> defunct, but we
> > > >> can strike out on our own.
> > > >>
> > > >> --Bob.
> > > >>
> > > >> Dive Into Python http://www.diveintopython.net/
> > > >> Learn Python The Hard Way http://learnpythonthehardway.org/
> > > >> KWPUG http://kwpug.org
> > > >> Ubuntu Canada IRC channel irc:// irc.freenode.net/#ubuntu-ca or
> > > >> http://webchat.freenode.net/?channels=ubuntu-ca
> > > >>
> > > >>
> > > >>
> > > >> John Van Ostrand < john at netdirect.ca > wrote:
> > > >>
> > > >> Hi Colon,
> > > >>
> > > >> Scripting in Linux relies heavily on the vast array of programs
> > > >> either directly or indirectly.
> > > >>
> > > >> Bash is the command shell and is commonly used for scripting,
> > > >> especially in system start up. It uses external programs heavily.
> > > >> I
> > > >> usually start with bash and if it proves poor for the task I move
> > > >> to
> > > >> perl by massaging the script.
> > > >>
> > > >> Perl is a very flexible and powerful scripting language and it
> > > >> borrows a lot of syntax from bash, awk and grep. So learning bash
> > > >> helps with perl. It works well for parsing text files.
> > > >>
> > > >> Python seems to be one of the more recently popular scripting.
> > > >> With
> > > >> add-ons it's used for Fedora admin Gui programs. It also handles
> > > >> threading well and has lots of other add-on modules.
> > > >>
> > > >> There are lots of other options but these are the common
> > > >> workhorse
> > > >> apps for system-level scripting.
> > > >> Bash and the common linux commands are worth getting familiar
> > > >> with.
> > > >> Regular expressions are also commonly handy. These are the basics
> > > >> that I findf handy all the time.
> > > >>
> > > >> What are you trying to do?
> > > >>
> > > >>
> ------------------------------------------------------------------------
> > > >> *From*: kwlug-disc-bounces at kwlug.org
> > > >> *To*: KWLug Discussion
> > > >> *Sent*: Sat Jan 07 18:48:02 2012
> > > >> *Subject*: [kwlug-disc] Scripting in Linux and unit.d
> > > >>
> > > >> I'm not a programmer but I do understand some fundamentals and
> > > >> looking to learn some scripting so that I can automate some
> > > >> tasks.
> > > >> What would be a good way to learn this stuff.
> > > >>
> > > >>
> > > >> _______________________________________________
> > > >> kwlug-disc mailing list
> > > >> kwlug-disc at kwlug.org
> > > >> http://kwlug.org/mailman/listinfo/kwlug-disc_kwlug.org
> > > >>
> > > >
> > > >
> > > > _______________________________________________
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> > >
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> >
> > --
> > http://pnijjar.freeshell.org
> >
> >
> > - Paul
> >
> >
> >
> > _______________________________________________
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> > kwlug-disc at kwlug.org
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> >
> >
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>
> --
> John Van Ostrand
> CTO, co-CEO
> Net Direct Inc.
> 564 Weber St. N. Unit 12, Waterloo, ON N2L 5C6
> Ph: 866-883-1172 x5102
> Fx: 519-883-8533
>
> Linux Solutions / IBM Hardware
>
>
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