parsing string pathname with ruby

Question

I have a path string similar to:

/some/long/path/filename.extension

and I need to parse the "filename" part out in ruby

Answer 1

Use suffix parameter of File.basename method:

# irb
irb(main):001:0> File.basename('/some/long/path/filename.extension', '.*')
=> "filename"
irb(main):002:0> File.basename('/some/long/path/filename.v1.extension', '.*')
=> "filename.v1"

Ref: http://www.ruby-doc.org/core/classes/File.html#M000026