Question

I’m trying to search for a certain file type within all directories on my unix system using a ruby script. I understand the following code will search all files ending with .pdf within the current directory:

my_pdfs = Dir['*pdf']

As well as:

my_pdfs = Dir.glob('*.pdf').each do |f|
  puts f
end

But how about searching all directories and sub-directories for files with the .pdf extension?

Answer 1

Check out the Find module:
http://www.ruby-doc.org/stdlib-1.9.3/libdoc/find/rdoc/Find.html

Using Dir.glob is less than ideal since globbing doesn’t handle recursion nearly as well as something like find.

Also if you’re on a *nix box try using the find command. Its pretty amazingly useful for one liners.