Ruby global variables in Strings being evaluated/truncated

Question

I have some credentials that I need read into Ruby, but the problem is that they have #$ repeated several times in them. The behavior of said character sequence is as follows:

> "123#$123"
=> "123"

For some reason, Ruby evaluates the $1 (which is nil because no regex happened before). Is there any way to avoid this from happening? Thanks.

Answer 1

Use single quote instead of double quote:

irb(main):005:0> '123#$123'    
=> "123\#$123"

Or otherwise, escape the $ char:

irb(main):006:0> "123#\$123"
=> "123\#$123"