Bash scripts where to look for sources for practice?

Question

linux

Where can I get real case examples for the practice of script-based automation (specifically regarding administration), in
order to write better, you need to write and look at the code. There are a lot of basic tutorials
, but I simply can’t find more advanced and not sucked from the finger.
Any advice/advice would be greatly appreciated.
At work, the ancient C# legacy with Windows and a small unix infrastructure, where all this is not necessary.
But depending on the vacancies, each vacancy: Be able to work with scripts in one of: Bash, Python, Ruby etc.

Answer 1

Have a look at the OpenVPN auto install script - https://git.io/vpn

Answer 2

Advanced Bash-Scripting Guide
https://tldp.org/LDP/abs/html/
An in-depth exploration of the art of shell scripting