For most use cases a guy like him writes a shell script, there's already some well written software. F.e. in his case, he'd used something like Dagu. Don't writ

For most use cases a guy like him writes a shell script, there's already some well written software. F.e. in his case, he'd used something like Dagu. Don't write shell scripts. If you want to do some programming, pick a proper programming language.