David Dean's questions

I've been sent a HDD of new and updated files from an organisation that we are working with, but we already have most of the files sitting on our servers, and would like to update our local versions to match theirs.

Normally, this would be a job for something like rsync, but our problem is that the directory structure they provide is very poorly organised and we've had to rearrange their files in the past to work best with our systems.

So, my question is:

How can I find out which files in the set they have provided are new or different to the versions that we have, when the directory structures are different?

Once that question is answered, we can update the changed files, and work out where to put the new files on our system, probably somewhat manually.

I have some files and folders that are all in uppercase that I want to rename to their lowercase equivalent. What would be the best way to go about doing this in bash on a Linux system?

As an example I might have:

.
|-- FOLDER0
|   |-- SUBFOLDERA
|   `-- SUBFOLDERB
`-- FOLDER1
    `-- AFILE.TXT

And I want to convert it to:

.
|-- folder0
|   |-- subfoldera
|   `-- subfolderb
`-- folder1
    `-- afile.txt

I can probably write a depth first recursive script to do this (depth first to ensure that files and subfolders are renamed before their parent folder), but I was wondering if there is a better way. rename might be useful, but it doesn't seem to support recursion.

Under a UNIX shell, how can I get a similar effect to the watch command, but with paging so that I can scroll around in the output if it takes up more than one screen?

In other words, I want a program that is to watch what less is to cat.

As an example, lets say I wanted to watch the output of qstat, I could use

watch qstat

to watch the output of qstat, but this can only shows the first screenful.

With a paging version of watch, I would be able to move around in the output as it is still continuously updated by watch. Is there any way to do this at the moment with existing utilities?