As part of a project I'm working on, I find myself deep in a Linux shell script, needing to have a subroutine that converts a sentence of all lowercase to title case. You know, from "this is a test case" to "This is a Test Case". Not every word, just the right ones. Doable?

I have a folder full of files which are named with four digits and a file extension e.g. 0312.file and an XML-file describing the contents of these files. I am trying to do a shell scipt that will create folders and rename these files according to the xml, but I don't know how?

This is a template of what the xml looks like:

<section label="AA. category">
<children label="topic" source="AABB.file" />
</ section>

The script should represent the categories as folders containing the related topics, which should be represented as filenames.

In a different discussion on this site [see Redirecting input in a shell script] a visitor commented that "I was too busy trying to make sure the above post made sense that I forgot to ask for help. If you can, please post examples of how I can make the second argument a requirement and evaluate if it is a number. Thank you in advance!"