On Day 8 of the #90DaysOfDevOps challenge, basic shell scripting concepts were covered through practical examples.
The examples included demonstrating comments in shell script, usage of the echo command, variable declaration and usage, using built-in variables, and using wildcards.
Key Takeaways: Comments make code readable and maintainable, echo commands display output, variables store and manage data, built-in variables provide system information, and wildcards help in pattern matching.