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Fix potential shell injection issues and fix handling of filenames containing special characters#8

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DemiMarie wants to merge 3 commits into
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DemiMarie:master
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Fix potential shell injection issues and fix handling of filenames containing special characters#8
DemiMarie wants to merge 3 commits into
audreyt:masterfrom
DemiMarie:master

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@DemiMarie

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The current code mishandles filenames containing spaces and characters special to the shell. It also uses backticks and the 2-argument form of open, both of which should be avoided where security is important.

This code eliminates the use of these forms, eliminating these problems.

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