Re: "ocaml_beginners":: Directory in which executable is found?
- On Fri, Nov 05, 2004 at 02:52:06PM -0300, andrew cooke wrote:
> How do I find the directory in which the executable is located (I want toOn Unix this isn't possible in general. For example, the executable
> be able to read data from files that are part of my program's install
might have been deleted. However there are various heuristics you can
use to try to find the executable. This discussion applies equally
well to any Unix program.
(1) On Linux, follow /proc/self/exe which is a symlink which may
point to the executable.
(2) On Unix in general, look at the first command line argument
(Sys.argv.(0)) which will either be a full path which may be the
executable (but may not) or will be a relative path which can be
looked up by examining each element of $PATH (Sys.getenv "PATH") in
All of these methods may fail if the program was called in a strange
way, executable deleted or replaced, etc.
Richard Jones. http://www.annexia.org/ http://www.j-london.com/
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