Method: FileUtils#tail

Defined in:

lib/standard/facets/fileutils/slice.rb

#tail(filename, lines) ⇒ Object (private)

In block form, yields the last number of lines of file filename. In non-block form, it returns the lines as an array.

Note that this method slurps the entire file, so I don’t recommend it for very large files. If you want an advanced form of tail, I suggest using file-tail, by Florian Frank (available on the RAA):

# Returns last 3 lines of 'myfile'
FileUtils.tail("myfile",3)

And no tail -f.

# File 'lib/standard/facets/fileutils/slice.rb', line 50

def tail(filename,lines) #:yield
  IO.readlines(filename).reverse[0..lines-1].reverse
end