--- !ruby/object:RDoc::RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:RDoc::Markup::Flow::P 
  :body: Equivalent to <tt>$_.sub(<em>args</em>)</tt>, except that <tt>$_</tt> will be updated if substitution occurs. Available only when -p/-n command line option specified.
full_name: Kernel#sub
is_singleton: false
name: sub
params: |
  sub(pattern, replacement)   => $_
  sub(pattern) { block }      => $_

visibility: public
