Mac OS X: Secure Erase

• Secure Remove a file using srm in "Terminal"

  srm secret-file
  srm -d secret-dir
  

  
  
  
• Secure Empty Trash in "Finder":
  
  
  
  
  
• Secure Erase a disk or partition using "Disk Utility"
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SEE ALSO

• srm man page
• How-to Secure Erase Files from Your Hard Drive in OSX