When I first started using Ubuntu, I was coming from a distro journey that started with FreeBSD and took in Mandrake and Gentoo along the way; I hadn’t worked with any Debian-based systems before and was new to the way that Apache is configured on those platforms.
I find the default formatting for table output in LaTeX can look a bit … squashed, so I always precede my tables with this:
\renewcommand{\arraystretch}{1.5}
To define a table, you use the tabular keyword and define your columns using l, r or c depending whether you want each one right, left or centre justified:
\begin{tabular}{l | l}
For years I’ve used PDF Shuffler for this sort of thing but I wondered if there was an easy way of doing this from the command line this time, since I literally wanted to glue together a bunch of files one after another. Predictably, there is and it’s called pdftk – the PDF Toolkit. Continue reading
I have the main repo cloned onto my local machine. Before I do anything, I fetch and merge from the origin and then push back to it, so I know my repo is in sync with the github one. Then I fetch the branch I want to merge – usually one that we’ve got a pull request for. To see what’s in the branch:
git log [branch] --not master
This is nice because it doesn’t show what’s in the master branch of this repo but missing from the incoming branch, it just shows me what’s new on this branch.
I can diff and merge at this point, but more than once I’ve merged and then wondered what changes I have in my repo that aren’t in the github one (this is where it is helpful to have fetched from the remote one first). I have the github repo mapped as “origin” as per the excellent documentation so I can just do:
git diff origin/master..HEAD
This shows me the differences that are in my current repo as compared to origin/master, which is the tip of the main repo shown at the version it was when I last fetched it. I particularly use this when I’ve merged someone’s changes in for testing and am wondering quite what was supposed to happen – sometimes just reading the diff beforehand isn’t enough, it’s only when I get the code merged I realise something unexpected is happening!
Getting the thing installed was a bit of a puzzle as it has many dependencies (and that’s just the compiler) but I now have it working like a dream on both my laptop and my netbook. I discovered that it didn’t work with my presenter mouse but with a bit of help from a friend, I have a patch for that and now when I’m presenting I see something like this:
You can set which screen show this, and which shows just the main slide, and you can also set what duration the countdown timer should start from. One really key feature is that the timer doesn’t start counting until you advance from the first slide … unlike in open office where I usually put up the title slide during the break before my talk, then have to stop and start the presentation to reset the clock so I’ve got some vague idea of my running time!
So in true open source form, there’s a tool out there already (thanks Jakob, and thanks for responding to my emails!), and I was able to adapt it to my use case, or rather Kevin was able to! I would love to have the presenter console packaged so I could recommend it for more users, but for now I have a great open source solution enabling me to do what I’m good at – delivering content.
First of all, LaTeX templates are fussy things, start with someone else’s outline (for example the one Dave posted, which I use), or one you made earlier. There is some preamble and then the main contents of the presentation go between the \begin{document} and \end{document} bits.
Getting started was a struggle, I’ve never really used anything like it before and if there’s one thing LaTeX doesn’t do well, it’s error messages! The blog post I linked above has a sample presentation in it and I used that as my starting point. The source code goes in a file with a “.tex” suffix, e.g. presentation.tex. I then installed the texlive-latex-extra, latexmk, vim-latexsuite, latex-fonts-recommended and texlive-fonts-extra packages from aptitude, and generated a PDF by running:
latexmk -f -pdfps presentation.tex
). This is right up my street as I’m doing so much with with APIs, social and otherwise, at the moment and the book covers things I’m using such as OAuth and google’s services.