I did my trusty search on Bing! and come across RVM: Ruby Version Manager.

To Install RVM, do the following:

$ gem sources -a http://gemcutter.org/
$ gem install rvm
$ rvm-install
$ echo “if [[ ! -z $HOME/.rvm ]] ; then source $HOME/.rvm ; fi” >> ~/.bash_profile
$ source ~/.rvm/scripts/rvm

Now, you can install the necessary gems, that you want to install. Notice: Also, don’t use sudo as it will mess up the configuration.

Here I install the different Ruby interpreters:

$ rvm install ruby-1.8.7-p160
$ rvm install ruby-1.9.1

Now it’s important to notice that at this point you have separate gem installations for each of the interpreters you’ve installed in the previous step. That said, just go ahead and switch between your interpreters and use your command line scripts – ruby, gem, etc… – as usual.

Now, here is a way to switch between interpreters and install Ruby on Rails versions as well.

$ rvm ruby-1.8.7-p160 #switch to the specified version
$ ruby -v
ruby 1.8.7 (2009-04-08 patchlevel 160) [i686-darwin9.8.0]
$ gem install rails #note I’m not using sudo since the new gem paths point to the user’s home directory

$ rvm ruby-1.9.1 #switch to the specified version
$ ruby -v
ruby 1.9.1p376 (2009-12-07 revision 26041) [i386-darwin9.8.0]
$ gem install rails #note I’m not using sudo since the new gem paths point to the user’s home directory

Okay, you can now switch to a specific interpreter and have multiple rails versions, especially if you are migrating from 2.x to 3.

$ rvm gemset create rails222 rails126
Gemset ‘rails222′ created.
Gemset ‘rails126′ created.

$ rvm 1.9.2-head@rails222
$ gem install rails -v 2.2.2

$ rvm 1.9.2-head@rails126
$ gem install rails -v 1.2.6

There you go, pretty cool!

-Later.

So, I know how to do an alias, but the step I always forget is to reload my profile settings.

Here is a quick blurb, for those who have not used the command before.

1. First we edit/create a profile. For a normal user do:
pico /etc/profle
…or if you are not a root/superuser do:
pico ~/.profile

2. Add your alias like so to the file:
alias aliasname=’mycommand /path/path’ , I usually put in alias cls=‘clear’ as an example.
(notice no space between equal sign and ‘)

1. Save your changes and close the file.
2. Load/reload your profile with:

. /etc/profile
…or if you are not a root/superuser do:
. ~/.profile
*Note: the last file is probably already there as a normal user. Also this is the step I always forget.

1. If you are using root/sudo you will need to use sudo -i in order to load the profile upon login (more info about this here).

6. Done.

-Later

• In July 2010, Pandora had 60 million listeners registered. This is up from 50 million in April, and 40 million in December. (source)
• Previously, it took Pandora all of 2009 to double in size from 20 million to 40 million. (source)
• In December 2009 alone, 3 million new listeners joined Pandora — of which 2.7 million of them activated the service on a device other than a computer. (source)
• Pandora is available for the iPhone, the Blackberry, the Palm Pre, and devices running Google’s Android and Microsoft’s Windows Mobile operating systems. (source)
• About 90,000 new people a day activate Pandora on a mobile device and that number is growing (source)
• Pandora currently has hundreds of thousands of songs in its catalog from over 90,000 different artists. 80 percent of those artists are played each month. (source)
• Out of 100 hours, 1 hour and 15 minutes of radio is listened to on Pandora. (source)
• Pandora has 3/4 of a million songs so far; 90 million of those three-fourths were played last month. (source)
• 1 out of every 4 or 5 songs gets a thumb (whether up or down). (source)
• On average an individual listens to 17 hours of radio per week. Of the 17 hours of radio listened, 96% are listened to through broadcast radio (so NOT Pandora because it is a unicast radio). (source)

I find this interesting, given not so long ago I got an email from the Founder of Pandora, saying they where in financial trouble.

Thanks to LukeW to providing the numbers.

Internet: Teens on Facebook GOL (grumble out loud) as mothers become friends – latimes.com.

Great accessories for iphone and ipad.

iPhone Accessories, iPhone Cases, iPod Accessories & Cases: XtremeMac.

Here is a screen shot of the capabilities.

The beauty of this application is that it is free!

Another program I came across was Carbon Copy Cloner, this is a backup program, I like it because you can use other macs as the backup destination.

It is free as well, it would be nice to donate to the author as well. Some other features are:

* A Better Bootable Backup — your data, the operating system’s data, all preserved impeccably on a bootable volume, ready for production at a moments notice
* Simplest method to migrate to a new, larger hard drive
* Support for block-level disk-to-disk clones for super-fast upgrades.

Don’t take my word for it, try it out yourself!

The last program is Anxiety, this program is a simple ToDo program.

I like this program because it is simple, yet very functional.

Also, this program of course is free too.

This is the Helicopter prop, and we have to get close to it to get someone out, but also provide adequate protection for us.

Here is our crew moving onto the prop.

A picture of me in front of the prop.

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Walk a mile in your feet…

I think I might get a pair of these shoes to try out! I think it would be interesting to have them for my fire fighter agility test.

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