gistfile1.txt

% pry
[1] pry(main)> puts "Hello, world!"
Hello, world!
=> nil
[2] pry(main)> name = "Cecilia"
=> "Cecilia"
[3] pry(main)> puts "Hello, #{names}"
NameError: undefined local variable or method `names' for main:Object
from (pry):3:in `__pry__'
[4] pry(main)> wtf?
Exception: NameError: undefined local variable or method `names' for main:Object
--
0: (pry):3:in `__pry__'
1: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:275:in `eval'
2: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:275:in `re'
3: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:251:in `rep'
4: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:231:in `block (3 levels) in repl'
5: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:230:in `loop'
6: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:230:in `block (2 levels) in repl'
7: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:229:in `catch'
8: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:229:in `block in repl'
9: /Users/bmatheny/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/pry-0.9.10/lib/pry/pry_instance.rb:228:in `catch'
[5] pry(main)> puts "Hello, #{name}"
Hello, Cecilia
=> nil
[6] pry(main)> puts "Hello" + name
HelloCecilia
=> nil
[7] pry(main)>