Here is a template https://sharats.me/posts/shell-script-best-practices/ https://sharats.me/posts/shell-script-best-practices/ Should I put my code inside main(

Here is a template https://sharats.me/posts/shell-script-best-practices/ https://sharats.me/posts/shell-script-best-practices/ Should I put my code inside main()? I'm newcomer in bash