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Getting path of escript command at runtime

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port0

port0

Getting path of escript command at runtime

I have made an escript, I would like to include some sort of “usage: cmd options” help info. I have been unable to find an equivalent to “$0” in bash (I’ve been looking for a function). Is there a way to get the command path while running an escript?

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NobbZ

NobbZ

If you have an escript, you can use :escript.script_name/0 to get the name of the current script. As far as I remember it behaves the same way as *ARGV in C or ${0} in bash.

So if script_name == Path.basename(scriptname), you can use :os.find_executable(script_name) to get its location. Otherwise use :filename.pathtype to determine if the path is absolute or relative and then use it directly or join with cwd.

Thats a rough draft.

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