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    <p>According to the Hackage Docs for <a href="http://hackage.haskell.org/package/directory-1.2.0.1/docs/System-Directory.html#v%3aremoveFile" rel="nofollow"><code>removeFile</code></a>, the operation may fail with:</p> <blockquote> <p>isPermissionError / PermissionDenied The process has insufficient privileges to perform the operation. [EROFS, EACCES, EPERM]</p> </blockquote> <p>Also, according to the <a href="http://hackage.haskell.org/package/directory-1.2.0.1/docs/src/System-Directory.html#removeFile" rel="nofollow">source code</a> there, <code>removeFile</code> is just a thin wrapper around <code>deleteFile</code> in the Win32 API:</p> <pre><code>removeFile :: FilePath -&gt; IO () removeFile path = #if mingw32_HOST_OS Win32.deleteFile path #else Posix.removeLink path #endif </code></pre> <hr /> <p><b>Update</b></p> <p>After digging around the source code for winhugs, it seems the Windows API function <code>unlink</code> is actually being used to delete a file in Hugs:</p> <pre><code>primFun(primRemoveFile) { /* remove a file */ int rc; String s = evalName(IOArg(1)); if (!s) { IOFail(mkIOError(NULL, nameIllegal, "Directory.removeFile", "illegal file name", &amp;IOArg(1))); } rc = unlink(s); if (rc != 0) throwErrno("Directory.removeFile", TRUE, NO_HANDLE, &amp;IOArg(1)); IOReturn(nameUnit); } </code></pre> <p>In any case, the previous answer is going to hold up in the sense that any permissions constraint is not introduced by Haskell. Rather, any permissions error would be due to the underlying OS environment (user accounts, open files, permissions, etc).</p>
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    1. PORemoving file in haskell
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    1. COHow to use above code in haskell?
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    2. COYou don't, I just wanted to point out what is happening under the hood is just a simple OS-level delete operation.
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