Barry Margolin wrote:

In article <[email protected]>, [email protected]
(Randal L. Schwartz) wrote:

You think spaces in filenames are weird? I often made a habit of making
a directory named \n (well, a literal newline) to test my shell scripts.
I figured if they could deal with a newline, they could probably deal
with most other things. Also to freak out people peeking at my $HOME. :)

If you really want to freak them out, put \r in the filenames.

macOS lets users assign custom icons to files and folders. When you do it
for a folder, the system stores the icon in the folder in a file named "Icon\r", with a 0D byte at the end. These files are hidden in most
contexts, but occasionally an application will include one in a file
listing, and then you usually see the bottom half of the word "Icon" with a weird space under it.

(It looks like you're posting from a Mac, so maybe you were alluding to
this.)

The built-in (BSD) ls renders these files as Icon? in file listings, which is... not super helpful. GNU ls and exa both display the name more
explicitly, as 'Icon'$'\r' or Icon\r (with the \r in red), respectively.

Benjamin

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