Mini Shell

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

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Reads the next ``line'' from the I/O stream; lines are separated by <em>sep_string</em>. A separator of <tt>nil</tt> reads the entire contents, and a zero-length separator reads the input a paragraph at a time (two successive newlines in the input separate paragraphs). The stream must be opened for reading or an <tt>IOError</tt> will be raised. The line read in will be returned and also assigned to <tt>$_</tt>. Returns <tt>nil</tt> if called at end of file.
- !ruby/struct:SM::Flow::VERB 
  body: "   File.new(&quot;testfile&quot;).gets   #=&gt; &quot;This is line one\\n&quot;\n   $_                          #=&gt; &quot;This is line one\\n&quot;\n"
full_name: IO#gets
is_singleton: false
name: gets
params: |
  ios.gets(sep_string=$/)   => string or nil

visibility: public