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Add Elixir-specific note on System.find_executable in base-07-mg5.md #124

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Add Elixir-specific note on System.find_executable in base-07-mg5.md #124

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4 changes: 4 additions & 0 deletions stage_descriptions/base-07-mg5.md
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Expand Up @@ -8,6 +8,10 @@ For example, if PATH is `/dir1:/dir2:/dir3`, your shell should search in `/dir1`
- If a matching files is found and it has execute permissions, your shell should print the path to the file.
- If no matching files are found, your shell should print `<command>: not found`.

{{#lang_is_elixir}}
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@rohitpaulk rohitpaulk Aug 15, 2025

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  1. Let's move this to the notes section
  2. Let's add a fallback case for a generic language
  3. We don't have to say it's not recommended - a shell would usually use this, so it's okay.

For Elixir, you could say something like:

You can either use System.find_executable or implement the PATH traversal logic on your own.

For others, could be something like:

Most programming languages have methods in their standard library that can help with PATH traversal. For example, xyz in Python and in Go.

It's not recommended to use [System.find_executable](https://hexdocs.pm/elixir/1.18.4/System.html#find_executable/1) if you'd like to learn how to implement the functionality manully.
{{/lang_is_elixir}}

### Tests

The tester will execute your program with a custom `PATH` like this:
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