Programming

Creating and Uncompressing Zip Archives

Using the zip and unzip functions, you can compress and uncompress files and directories. The zip function compresses files or directories into a zip archive. The unzip function uncompresses zip archives.

Example -- Using the zip Function

Again building on the example from previous sections, the following code creates a zip archive of the retrieved Web page:

• %The urlread function loads the contents of the Web page into the 
  %MATLAB workspace.
  recentFile = 
  urlread('http://www.mathworks.com/matlabcentral/fileexchange/lo
  adFileList.do?objectType=fileexchange&orderBy=date&srt3=0');
  
  %The findstr function searches for the word "Simulink".
  hits = findstr(recentFile,'Simulink');
  
  %The if statement checks for any hits. 
  if(isempty(hits) == 0)
  %If there are hits, the Web page will be saved locally using the
  %urlwrite function.
  urlwrite('http://www.mathworks.com/matlabcentral/fileexchange/l
  oadFileList.do?objectType=fileexchange&orderBy=date&srt3=0','co
  ntains_simulink.html');
  
  %The zip function creates a zip archive of the retrieved Web page.
      zip('simulink_matches.zip','contains_simulink.html');
  end;
  

Downloading Web Content and Files

Sending E-Mail

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