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when I wanted to install SASS, I have been told to install ruby on my machine, ok fine.
then all I had to do is to run the following code
gem install sass
and now I am done, and I have SASS installed
my question is in general..
How did gem knows what SASS is, and from where did it get it ?
It is a cool thing but I just want to know what happened behind the scenes ?
Thanks
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What does gem install do? gem install , in its simplest form, does something kind of like this. It grabs the gem and puts its files into a special directory on your system. You can see where gem install will install your gems if you run gem environment (look for the INSTALLATION DIRECTORY: line):
The main place where libraries are hosted is RubyGems.org, a public repository of gems that can be searched and installed onto your machine. You may browse and search for gems using the RubyGems website, or use the gem command. Using gem search -r , you can search RubyGems' repository.
A Gemfile describes the gem dependencies required to execute associated Ruby code. Place the Gemfile in the root of the directory containing the associated code. For instance, in a Rails application, place the Gemfile in the same directory as the Rakefile .
RubyGems is a package manager like many others. It depends on a central repository to host installable packages. The command line tool fetches these packages from the central repository and installs them.
See RubyGems FAQ and Introduction.
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