[CentralOH] 2015-10-09 道場 Scribbles 落書/惡文?: rms; catb; gpl; lehmans; java; filesystem performance in VMs; APPLE; pg edit; awh awk; dynamic languages; Writing; Bacon; pylint uml; go; ml; the mother of all demos; projecteuler; concrete mathematics by the Donald; router; tr; bourne

jep200404 at columbus.rr.com jep200404 at columbus.rr.com
Sat Oct 10 22:45:14 CEST 2015


Had eight folks.

Richard Stallman is giving a presentation.
Those who are not familiar with his ideas and positions
should see his presentation.
2015-10-17 1300-1530
Kent State University Kiva Auditorium
https://www.fsf.org/events/rms-20101017-kent
It's interesting how the URL could be interpreted to be for 
an event five years ago.
http://www.meetup.com/Northeast-Ohio-ACM-Chapter-Meetup/events/221727538/
http://www.neoacmchapter.org/neoacmchapter/stallman_at_kent/

To be prepared beforehand for a different presentation,
read The Cathedral and The Bazaar and the GPL.

Check out Lehman's beforehand. lehmans.com

QA Engineer walks into a bar.
https://mobile.twitter.com/sempf/status/514473420277694465

http://www.mrlovenstein.com/comic/370#comic

Comparing Filesystem Performance in Virtual Machines
http://mitchellh.com/comparing-filesystem-performance-in-virtual-machines

APPLE: My Key to Success
http://mitchellh.com/apple-the-key-to-my-success

scriptscribe.org is covermymeds tech blog

Postgres \e Command
https://www.scriptscribe.org/databases/postgres-e-command/
export PSQL_EDITOR=/usr/bin/vim
Thanks CJ!

Thanks for Covermymeds for sponsoring the Ohio Linux Festival.

does awh use awk?
awk aho, weinberger, and kernighan
awh allen, williams, and hughes

wp:AWK
http://www.awh.net/

wp:Dynamic programming language

Dayton Dynamic Language User Group
https://dayton-dynamic.github.io/

Stephen King's practical advice for tech writers
http://opensource.com/business/15/10/what-stephen-king-can-teach-tech-writers

The Care and Feeding of the Press
http://netpress.org/care-feeding-press/

    E-mail should be sent as a plain text file: the simpler, the better.

    Do turn off the option in your mail program that sends a second,
    HTML copy of the message as an attachment.

"Bacon makes everything better"
http://www.theregister.co.uk/2015/10/09/worlds_oldest_woman_scoff_daily_ration_of_bacon/

pylint includes reverser to UML
spaghetti code looks bad in UML also
https://www.logilab.org/blogentry/6883

google endpoints
    done by google?
restful api?

wp:Embrace, extend and extinguish

wp: prefix means Wikipedia
To get good answers, consider following the advice in the links below.
http://catb.org/~esr/faqs/smart-questions.html
http://web.archive.org/web/20090627155454/www.greenend.org.uk/rjk/2000/06/14/quoting.html

use go for massively parallel computing

wp:ML (programming language)
wp:The Mother of All Demos
highly recommended TMoAD

projecteuler.net

wp:Pantheon, Rome
wp:pozzolan
What's the volume of the coffered dome of the Pantheon?
wp:Concrete Mathematics
    by The Donald!!!
wp:The Art of Computer Programming

highly recommends SICP
wp:Structure and Interpretation of Computer Programs
http://groups.csail.mit.edu/mac/classes/6.001/abelson-sussman-lectures/
yet another thing for my todo list

Checkout Sparkles' horn.
http://opensource.com/life/15/10/arduino-powered-my-little-pony-donation-box

Linksys WRT router gains faster SoC, more RAM, OpenWrt
http://linuxgizmos.com/linksys-wrt-gains-faster-soc-more-ram-and-openwrt/
With .5GB of RAM it could run Python.
Has this box been crippled by recent FCC stuff?

# tr can be used to tame nasty characters.
# Instead of having to specify all the nasty characters,
# with the risk that one forgot some or new nasty characters might be created,
# the -c option allows one to specify just the good characters.
# How many lines can you do that in Python?
echo -n 'some-command_to_do-stuff --help /over/there/957790-99999-2015.gz 20151009-191737.815955709.log' | tr -c -s 'a-zA-Z0-9_' '.'

More Bourne Shell subtleties.
Compare "${1:+is_set}" with "${1+is_set}".
(with and without ':')

    fun at dojo:~/20151009$ cat coo.sh 
    #!/bin/sh
    
    a="${1:+is_set}"
    echo "a is >$a<"
    
    if [ "${1:+is_set}" != "is_set" ]; then
        echo one
    fi
    
    e="${1+is_set}"
    echo "e is >$a<"
    
    if [ "${1+is_set}" != "is_set" ]; then
        echo fife
    fi
    fun at dojo:~/20151009$ ./coo.sh
    a is ><
    one
    e is ><
    fife
    fun at dojo:~/20151009$ ./coo.sh ''
    a is ><
    one
    e is ><
    fun at dojo:~/20151009$ ./coo.sh ' '
    a is >is_set<
    e is >is_set<
    fun at dojo:~/20151009$ ./coo.sh 'hello'
    a is >is_set<
    e is >is_set<
    fun at dojo:~/20151009$ 

http://www.in-ulm.de/~mascheck/bourne/v7/
Yikes! from Caldera


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