Wednesday, August 5, 2009 at 9:11AM 
The power of Linux for administrators resides in the command line. Here's a quick way to retrieve a list of users currently logged into a Linux server, and their running processes.
Friday, June 12, 2009 at 2:48PM 
So you're new to Ubuntu Linux. You just got it installed for the first time, but you are wondering how to enable DVD Playback, Flash capability, MP3, Quicktime, and other popular media formats. Never fear, here's a command to get it all up and running.
Open up a terminal window and type:
sudo apt-get install ubuntu-restricted-extras
You will be prompted for your administrative password, at which point it will begin to download all the required codecs, making your Ubuntu multimedia ready.
linuxtips, media codecs, ubuntu in Linux Monday, May 18, 2009 at 6:20PM 
Some basic BASH shell commands for gathering directory size information.
These work in OSX's terminal as well.
Tuesday, April 14, 2009 at 5:09PM 
For those new to Linux, here's a handy list of bash commands that I use frequently, along with a brief description of what they're used for.
Thursday, April 2, 2009 at 5:04PM If you've ever been behind a router/firewall and needed to find out what your IP address is to the outside world, here's a few ways to find that information.
The easiest way is through your web browser:
http://whatismyip.org/
http://www.ipchicken.com/
http://checkip.dyndns.org/
http://myip.dk/
Use which ever is easiest for you.
You can also find it via the shell in Linux, and the Terminal in OSX.
Linux: wget -q -O - checkip.dyndns.org | sed -e 's/[^[:digit:]|.]//g'
OSX: curl www.whatismyip.org
