> For the complete documentation index, see [llms.txt](https://hossainemruz.gitbook.io/notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hossainemruz.gitbook.io/notes/linux/untitled/tips-and-tricks.md).

# Tips & Tricks

## Expanding Bash arrays safely with `set -u`

* <https://gist.github.com/dimo414/2fb052d230654cc0c25e9e41a9651ebe>