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Upload File : current_dir [ Writeable ] document_root [ Writeable ]

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

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Truncates <em>file</em> to at most <em>integer</em> bytes. The file must be opened for writing. Not available on all platforms.
- !ruby/struct:SM::Flow::VERB 
  body: "   f = File.new(&quot;out&quot;, &quot;w&quot;)\n   f.syswrite(&quot;1234567890&quot;)   #=&gt; 10\n   f.truncate(5)              #=&gt; 0\n   f.close()                  #=&gt; nil\n   File.size(&quot;out&quot;)           #=&gt; 5\n"
full_name: File#truncate
is_singleton: false
name: truncate
params: |
  file.truncate(integer)    => 0

visibility: public