Adding something to ruby loads path

Question

I want to add a folder ~/Projects/Scripts so I can use require script where script is a ruby file in this directory.

How does the require ruby method works? Does it load from a enviornment variable and if so what?

Answer 1

See this existing question. The answer is that you set the RUBYLIB environment variable to add items to the list of paths that Ruby searches.

Answer 2

$LOAD_PATH or $: or $-I is array of string holding the directories to be searched when load the files with the load or require methods. You can append new directories as you did for normal array.

 >> $:
 => ["deleted_for_simplicity","/usr/lib/ruby/1.8/i386-linux", "."]

 >> $: << "/opt/project"
 => ["deleted_for_simplicity","/usr/lib/ruby/1.8/i386-linux", ".", "/opt/project"]