What Makes an App the System Default? Post: 302770436

Sponsored Content

Top Forums UNIX for Dummies Questions & Answers What Makes an App the System Default? Post 302770436 by sudon't on Friday 15th of February 2013 09:07:01 PM

02-15-2013

Registered User

What Makes an App the System Default?

Hi!
I'm not sure how, (or if), Apple updates stuff in the standard unix installation of OS X, but whenever I have occasion to check a version number of something in my standard install, it is outdated. Normally, I will then install the newer version via ports, which usually becomes the default. Being a long-time Mac user, I am used to these things happening automagically, and I don't always give it much thought.
But today, I wanted to install a little Scrabble Solver script I found, and it required ruby 1.9.2, or better. I checked my version in /bin, and found I had 1.8, so I installed ruby19 via ports. Then I tried to install the script.

Code:

$ sudo gem install scrabble-solver
ERROR:  Error installing scrabble-solver:
	scrabble-solver requires Ruby version >= 1.9.2

$ which ruby
/usr/bin/ruby

$ ls -l /opt/local/bin/ |grep ruby
-rwxr-xr-x   1 root  admin     9024 Feb  6 11:21 ruby1.9
$

Why didn't ruby 1.9 become the default? How does the system determine which app is the default? I used to think it simply accepted the first one it came across in my PATH, but clearly that is not the case.

Code:

$ echo $PATH
/opt/local/bin:/opt/local/sbin:/Library/Frameworks/Python.framework/Versions/3.2/bin:/opt/local/bin:/opt/local/sbin:/sw/bin:/sw/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/MacGPG2/bin:/usr/X11/bin

I haven't had occasion to invoke ruby myself, but I suppose other stuff uses it. Is there any reason I couldn't just set an alias to ruby 19 in my bash config? Would that solve the problem in terms of installing this script?
TIA!

sudon't

View Public Profile for sudon't

Find all posts by sudon't

3 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Loading App as the System starts

Hi Folks! I am a Mac OS X user, and have written an Applescript application that I would like it to be run before the user logs in. I have tryed leaving the Mac on the "Login Screen", that screen just before you log in typing name and password, and logging using ssh from another Mac on the...

2. UNIX for Dummies Questions & Answers

chmod ug-s /System/Library/CoreServices/RemoteManagement/ARDAgent.app/.... NOT PERMITTED

After much reflecting I decided that I don't want to have a remote managemente in my computer and I digited in Terminal from the Administrator Account: chmod ug-s /System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent But the answer is: NOT PERMITTED Why? Is it not...

3. Programming

Wuhan Coronavirus Status App for China - Rapid Prototype using MQTT and the IoT OnOff IOS App

With a little bit of work, was able to build a nice "Wuhan Coronavirus Status" app using MQTT and the IoT-OnOff app. More on this technique here: ESP32 (ESP-WROOM-32) as an MQTT Client Subscribed to Linux Server Load Average Messages The result turned out nice, I think. I like the look and...

LEARN ABOUT DEBIAN

ruby-build

RUBY-BUILD(1)															     RUBY-BUILD(1)

NAME

       ruby-build - compile and install Rubies

SYNOPSIS

       ruby-build [-v|--verbose] [-k|--keep] definition prefix
       ruby-build --definitions
       ruby-build --version
       ruby-build [-h|--help]
       rbenv install [-k|--keep] definition

DESCRIPTION

       ruby-build provides a simple way to compile and install different versions of Ruby on UNIX-like systems.

       ruby-build  downloads,  builds  and  installs the Ruby version specified in a definition into a prefix directory. Definitions can be chosen
       from the list of installed definitions or by specifying a file path for a definition.

       rbenv(1) users can also use the provided rbenv install command, which installs Rubies into the rbenv directory.

OPTIONS

       --definitions
	      List available definitions.

       -k, --keep
	      Don't delete source code after installation.

       -v, --verbose
	      Display compiler messages on standard output.

       --version
	      Show ruby-build version and exit.

       -h, --help
	      Show usage information and exit.

EXAMPLES

       Install Ruby 1.9.3 (MRI, patch level 0) to ~/rubies/mri-1.9.3

	   $ ruby-build 1.9.3-p0 ~/rubies/mri-1.9.3

       Install Ruby Enterprise Edition 1.8.7 (patch level 2011.03) for rbenv(1):

	   $ rbenv install ree-1.8.7-2011.03

       Install Ruby from a custom definition into ~/your-ruby:

	   $ rbenv install /path/to/your/own/ruby/definition ~/your-ruby

ENVIRONMENT

       CC     Sets the path to the C compiler.

       CONFIGURE_OPTS
	      Options that are passed to configure when building a Ruby.

       MAKE_OPTS
	      Options that are passed to make when building a Ruby.

       MAKEOPTS
	      Used instead of MAKE_OPTS when MAKE_OPTS is not defined.

       TMPDIR Sets the location where ruby-build stores temporary files.

       RUBY_BUILD_BUILD_PATH
	      Sets the location in which sources are downloaded and built.

AUTHORS

       ruby-build is developed by Sam Stephenson <sam@37signals.com>.

       This man page was written for the Debian GNU/Linux distribution by Sebastian Boehm <sebastian@sometimesfood.org> but may be used by others.

SEE ALSO

       rbenv(1)

								     June 2012							     RUBY-BUILD(1)