Interessant om weten mijn gedacht. Ruby backticks as in ` :)

What do they do? Backticks run an external program and return its output as a string.

eg (irb in Cygwin on windows):

$ irb
irb(main):001:0> output = echo 'Hello World!'
=> “Hello World!\n”
irb(main):002:0> puts output
Hello World!
=> nil
irb(main):003:0>

Nifty!