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3 years agoThere are various GUI tools (eg., gprename, krename) but I prefer qmv, a CLI tool from the renameutils package. It opens filenames into a vim (or your default editor) session, with which you can use global regex search/replace commands to rename files.
BcacheFS is a very different animal from Bcache; it does not provide block device caching. See bcachefs.org/FAQ/