Rename Help with interesting difficult regEx patterns

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3

Try my Dynamic Renamer. It makes these really easy, and you can save them as presets. Here are the "New name" values that solve your problems 1 - 5:

  1. -/{2,}/ /g -///g

  2. -/([a-z])([A-Z])/$1 $2/g -ct

  3. -sl

  4. -/. / - /

  5. -/-\d+//

And you can add additional transformations if you wanted. For example, your number 5 changes the 1st one here to the 2nd one:

How to rename-1.txt
How to rename.txt

If you now wanted to title case that name, just add -ct to to #5 answer:

-/-\d+// -ct

or if you didn't want the "To" to be uppercased (because it is a preposition):

-/-\d+// -cT