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Add an explanation of magic vars

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Kevin van Zonneveld 2016-03-03 11:48:21 +01:00
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FAQ.md
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@ -50,7 +50,7 @@ then you can evalute the correspondign argument and assign it to a variable as f
### What is a magic variable?
The [magic variables](https://github.com/kvz/bash3boilerplate/blob/master/main.sh#L63) in main.sh are special in that...
The [magic variables](https://github.com/kvz/bash3boilerplate/blob/master/main.sh#L63) in `main.sh` are special in that they have a different value, depending on your environment. You can use `${__file}` to get a reference to your current script, `${__dir}` to get a reference to the directory it lives in. This is not to be confused with the location of the calling script that might be sourcing the `${__file}`, which is accessible via `${0}`, and the current directory of the administrator running the script, accessible via `$(pwd)`. Other magic variables are for instance `${__os}` which currently is limited to telling you wether you are on `OSX` and otherwise defaults to `Linux`.
### How do I submit an issue report?