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Ubuntu Unleashed 2014 Edition: Covering 13.10 and 14.04,Ninth Edition by Paul Hudson, Andrew Hudson, Matthew Helmke

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Viruses

In the right hands, Linux is every bit as vulnerable to viruses as Windows is. That might come as a surprise to you, particularly if you made the switch to Linux on the basis of its security record. However, the difference between Windows and Linux is that it is much easier to secure against viruses on Linux. Indeed, as long as you are smart and diligent, you need never worry about them. Here is why:

Image Linux never puts the current directory in your executable path, so typing ls runs /bin/ls rather than any program named ls in the current directory.

A nonroot user can infect only the files that user has write access to, which is usually ...

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