Thanks for the correction! It seems more complicated after looking more into it. According to https://en.m.wikipedia.org/wiki/Filename https://en.m.wikipedia.o

Thanks for the correction! It seems more complicated after looking more into it. According to https://en.m.wikipedia.org/wiki/Filename https://en.m.wikipedia.org/wiki/Filename , reserved characters are: HFS: > : HFS+: > : on disk, in classic Mac OS, and at the Carbon layer in macOS; / at the Unix layer in macOS APFS: > In the Finder, filenames containing / can be created, but / is stored as a colon (:) in the filesystem, and is shown as such on the command line. Filenames containing : created from the command line are shown with / instead of : in the Finder, so that it is impossible to create a file that the Finder shows as having a : in its filename. TIL about a 'carbon layer' and 'POSIX layer'