This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

tell 

        # IO.tell

(from ruby core)
---
    tell -> integer

---

Returns the current position (in bytes) in `self` (see
[Position](#class-IO-label-Position)):

    f = File.new('t.txt')
    f.tell     # => 0
    f.readline # => "This is line one.\n"
    f.tell     # => 19

Related: IO#pos=, IO#seek.

IO#pos is an alias for IO#tell.

This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.