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Adjusted points from 50 to 100
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For which OS. There are no ansi function which will do this. The POSIc function for these are<br />
<br />
opendir, readdir, scandir, closedir, ...<br />

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For which OS. There are no ansi function which will do this. The POSIc function for these are

opendir, readdir, scandir, closedir, ...


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Sorry, I forgot to mention it is in Linux. Could you give an outlined example as how it works?<br />

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Sorry, I forgot to mention it is in Linux. Could you give an outlined example as how it works?


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The answer is good. You should post it here.
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The answer is good. You should post it here.

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How do I read a file following $PATH if it is not in current directory. I mean, are there methods to easily do that instead of dissecting $PATH string and try to find the file directory by directory? Thanks!
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How do I read a file following $PATH if it is not in current directory. I mean, are there methods to easily do that instead of dissecting $PATH string and try to find the file directory by directory? Thanks!

Read a file following $PATH

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.