From MorphOS Library
FileNote - Set a comment for a file
FILE/A, COMMENT, ALL/S, QUIET/S
FILE - name of the file to attach a comment COMMENT - string to attach to the file if this argument is omitted, any existing filenote is deleted from the named file. ALL - adds the COMMENT to all the files and subdirectories matching the pattern entered. QUIET - suppresses error messages
If the COMMENT includes spaces, it must be enclosed in double quotation marks.
NOTE: To include double quotation marks in a filenote, each literal quotation mark must be immediately preceded by an asterisk (*) and the entire comment must be enclosed in quotation marks, regardless of whether the commend contains any spaces.
NOTE2: File comments are limited to 79 characters.