I can't speak for AG87, but on Linux it's pretty easy to create a file with a pipe symbol in it.

touch 'foo|bar' && ls -l foo* && rm -i 'foo|bar'

If I recall correctly, the only character disallowed in Linux filenames is the slash.

In reply to Re^4: Listing of files using glob by tobyink
in thread Listing of files using glob by AG87

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