## .bash_profile vs .bashrc in OS X Terminal.app

.bash_profile vs .bashrc or why does OS X ignore my .bashrc in Terminal.app?

## Keyboard shortcut to un-minimise a window in OS X

It’s a bit fiddly but it can be done. Cmd+m to the item you want to un-minimise, then while still holding cmd, press Option. Release Cmd and then finally release Option.

## Insert a new heading after numbered list in org-mode

In org-mode in emacs, M-<RET> will add either a new heading or if your insertion point is between a list item and a heading, it will add a new list item. This is not always desirable. To add a new heading try C-U M-<RET>. I only discovered this as I got frustrated with org-mode insisting […]

## Collaborative online $\LaTeX$ documents

writelatex.com is awesome. Edit your $LaTeX$ document and see the changes almost immediately.

## Collectd causing rrd illegal attempt to update using time errors

I found collectd causing rrd illegal attempt to update using time errors. I was seeing a whole load of lines like this in my syslog: Aug 20 16:27:12 mythbox collectd[32167]: rrdtool plugin: rrd_update_r (/var/lib/collectd/rrd/mythbox/df-root/df_complex-free.rrd) failed: /var/lib/collectd/rrd/mythbox/df-root/df_complex-free.rrd: illegal attempt to update using time 1345444032 when last update time is 1345444032 (minimum one second step) It was […]

## Choosing passwords for the 21st century

The recent Mat Honan hack got me thinking about password strength. It turns out he was hacked not due to having a poor password, but because of a security flaws in Amazon and Apples’ systems. Nevertheless it serves as a good reminder to keep yourself safe. One thing you can do is use very long […]

## Twenty Twelve WordPress theme

I switched to using the Twenty Twelve WordPress theme a few days ago. I really am liking it although I’m not sure about the header image being below Site Title and Tag Line. That looks a little strange to me. Having said that, I think Twenty Twelve looks fantastic on the demo site. Currently you […]

## $$\LaTeX$$ Equations in WordPress using MathJax

I came accross this great tool for displaying mathematical equations the other day. MathJax not only supports $$\LaTeX$$ syntax but also renders the equations as pure text, so no unsightly images and they scale beautifully. You can also right click on the equation and see it’s $$\LaTeX$$ code. The code for MathJax is open source, […]