Under most circumstances, recovering a file that has been deleted is pretty easy, even under most Linux file systems. So what do you do if you wish to securely delete a file so that it can not be recovered? Use Wipe
Head over to your Software Manager and do a quick search for Wipe. Once found, just install it as usual. Wipe is a Terminal program, so once installed, there will be no menu item for it.
Using Wipe is easy. First thing you’ll want to do is learn the syntax for using the tool. Open a Terminal, and type: wipe -help
This will give you a full listing of the options and usage for this powerful tool.
Next thing to do is navigate to the directory that contains the file(s) you wish to securely remove from your hard drive and running Wipe against the file name like in the example below:
In this case, I simply typed: wipe filetodelete.png at which point Wipe will ask you to confirm your desire to delete the file. This will be your last chance to say no, before the file is gone for good!