Update: This issue went away in a normal install. I presume that the added firmware during installation took care of the WiFi issues.

Original entry begins here:

I was just saying how compatible my now-3-year-old HP Pavilion g6-2210us laptop is with Linux at its advanced age. Everything in Fedora works with no tweaking, no modifications.

So I wanted to try Ubuntu 16.04 (with Unity even). First I used Unetbootin to put the ISO on a USB key. That didn't seem to work, though I had enough trouble getting the display to work that the problem could very well lie elsewhere.

So I used dd to put the ISO on the USB:

sudo dd if=/path/to/ISO of=/dev/sdb bs=8M

That worked. I booted into Ubuntu 16.04. Then I still had a blank screen. I tried to switch to a virtual terminal with ctrl-alt-F2, and eventually hit all the ctrl-alt-number combinations, after which ctrl-alt-F7 got me the graphical desktop.

That very well could have worked with my Unetbootin-created bootable USB stick.

Meanwhile, once I had Ubuntu running, I could connect to my older Netgear router running WEP but not to my newer Time Warner modem/router (I can't remember the brand or model) with WPA.

My laptop uses the Qualcomm Atheros AR9485 WiFi module, and that was where I looked first for ideas.

I found something pretty quickly.

In a terminal, enter this line:

 echo "options asus_nb_wmi wapf=1" | sudo tee /etc/modprobe.d/asus.conf

After that, I was able to connect to my WPA-enabled router, and all was well.

I didn't think I needed to resort to this kind of filthy hack in 2016 and on a laptop that has been in the wild for three full years.

But I did.

I'm not sure what I think of Ubuntu 16.04 just yet. I'll need to do a Citrix test. Running the big Citrix-enabled application that I use for my day job is pretty good in Xfce but horrible in GNOME Shell in Fedora. If it is in any way better in Unity, that will carry a lot of weight.

While it calls itself out as old and out of date, I really like The Bastards Book of Ruby.

I recognize that Ruby is no longer the new hotness, but it's still so useful and, dare I say, user-friendly. For those reasons, I'd love to see updated versions of just about every book out there.

I'm using the old (as the hills) "Learning Ruby" by Michael Fitzgerald (2007, O'Reilly), The Pickaxe book ("Programming Ruby") from Ruby version 1.9.2 (2010/11, Pragmatic Programmers, though do I realize there is a 2013 edition).

The beginners books seem to be the oldest. At my level, everything seems to be working, so I will maybe complain a little less.

I do have a Rails book, "Rails Crash Course," by Anthony Lewis, that's much newer, but I'm not there quite yet. And there's always Michael Hartl's "The Ruby on Rails Tutorial", of which the more I see, the more I like.

I tend to learn things in programming when I have a problem to solve. This is just such a case.

I was working with a huge XML file, and I needed to trim elements out of it that begin with <generic tag> and end with </generic tag>, and include a random amount of text and other tags, across multiple lines, in between.

At first I tried using the Nokogiri gem, but it just wasn't happening. I was working on my Election Results script, and ... the election -- they hold it on a certain date, you know.

I would have to brute-force it. Like I always do.

My whole idea this cycle was to dump my giant sed hack from elections past and use mostly (if not all) Ruby to parse the XML I get from the state of California and provide the JSON output my fellow dev needed for the front end. (I also have a ton of fixed-width ASCII from Los Angeles County to deal with, as well as scraped HTML from San Bernardino County, but those are other tales for other times.)

With the state data, I had the XML-to-JSON conversion covered with Ruby's Crack gem. But I just couldn't pare down the XML to make the JSON a manageable size.

Read the rest of this post

A company called Prograils offers a great tutorial, Loops in Ruby - all possible approaches.

It looks like a good reference for when you're writing a Ruby program and need to figure out which kind of loop will work best in a particular situation.

I've been using Firefox version 47 for the past couple of days. And it's been working well. This isn't for my day job, where I beat the hell out of the browser, but for "research" (aka looking things up) while learning programming.

Nothing cost $ .

I should probably give it a try for my real work and see how it holds up.

Update: Firefox did better than I thought but not good enough.

Slow rendering in Google Maps was annoying.

It couldn't handle Tweetdeck at all. Nobody would (or should) argue that Tweetdeck is anything but a mess. It is built with unwieldy amounts of JavaScript and delivers messes (or masses) of data. Trying to run Tweetdeck in Firefox was a parade of "unresponsive script" pop-ups that had me bailing out for Chrome within the hour.

I want Firefox to be competitive. I'd rather have fewer eggs in Google's basket. But my web production workflow is just too many windows of pain.

Need to open an existing file, create a new one and write to that file in Ruby?

This Stack Overflow answer makes it super simple.

I already used this in one of my little Ruby programs.

In the same thread (but earlier), here's another one.

This entry shows what I'm doing when I practice programming. I find it helpful to write little programs that use the concepts I'm trying to learn.

Why Ruby? you might ask. No particular reason. I've spend a semester learning C++, and I was pleasantly surprised to find out that the things I learned are applicable in many other programming languages. Ruby is one of them.

Writing scripting-type programs is one of the things I do. I have "practiced" recently with Bash (and all the little Unixy utilities that go along with it) and Perl (for the add-on that does the statistics for this blog).

Ruby just happens to interest me. I'm also interested in Elixir, but for the kind of things I'm interested in doing right now, Ruby with its many, many Gems and "make programmers happy" philosophy looks like a good fit.

I could say the same thing about Perl (or Python, or Java), but for now I'm playing around with Ruby.

I find that writing little programs like these is a great way to learn. And writing the "same" program in different languages is also very helpful. I could re-write this one in, say, Perl or JavaScript (using either Node in the console or rendering it on an HTML.

Here is the program I wrote to practice using Ruby loops and arrays. I also worked with strings (and converting arrays to strings and back again) and outputting results to the terminal.

What is an array? Here's what it is (in my mind anyway): A collection of pieces of data that can be manipulated as a whole. You can mix numbers and strings. In Ruby, arrays can even contain other arrays. I read that somewhere.

Here is the program:

#!/usr/bin/env ruby

=begin

The purpose of this program is to experiment
with Ruby loops, arrays, strings, integers and output.

The program creates an array, uses loops
to *push* numbers into that array, shows what
the array looks like at every stage using *puts*
and *inspect*, then uses *shift* to remove
numbers from the array, also showing
what it looks like at every stage.

There are two more loops in this script.
One prints out numbers ascending, the other
descending. 

=end

# Create an array

number_array = Array.new

# loop uses *push* to add a number,
# *puts and *inspect* to print it

(1..10).each do |i|
    number_array.push(i)
    puts number_array.inspect

end

# loop uses *shift* to remove
# an array element
# 1...10 with three dots runs
# the loop until 9, not 10

(1...10).each do |i|
    number_array.shift
    puts number_array.inspect
end

# *puts* on its own adds a blank line

puts

# *print* prints the output without adding
# a newline character (aka \n) like *puts*

for i in 1..10
    print i
    print " "
end

puts

10.downto(1).each do |i|
    print i
    print " "
end

There's a great book available on the web, "Ruby for Admins."

Grammatically it's a little rough -- I would love to contribute via GitHub if that was available -- but the information seems solid.

Finished my first CS class - programming in C++ - and did another Election Night results script that was supposed to be mostly Ruby but ended up mostly Bash. This time I had help and mostly worked on the back end. Things I did: used git and GitLab, generated JSON from XML, used Ruby Gems. Time constraints drove me back to Bash, but I would like to re-write it using MUCH more Ruby.

The lovely people at Xfce and downstream at Fedora moved a new version of the Thunar file manager to fix a bug causing crashes when files are cut from one folder and pasted into another -- something I tend to do quite often.

The crash didn't happen every time but did often enough to be a little annoying.

Thanks to all who were involved, from reporting the bug to making the fix and then pushing new code.