David A. Wheeler says it's time to adopt tighter rules for file names
to improve ease of use, robustness, and security. "In a well-designed system, simple things should be simple, and the 'obvious easy' way to do something should be the right way. I call this goal 'no sharp edges' - to use an analogy, if you're designing a wrench, don't put razor blades on the handles. The current POSIX filesystem fails this test - it does have sharp edges. Because it's hard to do things the 'right' way, many Unix/Linux programs simply assume that 'filenames are reasonable', even though the system doesn't guarantee that this is true. This leads to programs with errors that aren't immediately obvious.
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