This has been a bug open with Oracle for more than 6 years, but it looks like they donβt want to fix it.
Their recommended workaround ( Doc ID 788156.1 in section C.6) is to break the spec or make your first line of script comment, and then ignore this error.
SP2-0042: unknown command "β©ββ" - the rest of the line is ignored.
or
SP2-0734: unknown start of the command "- Commen ..." - the rest of the line is ignored.
Error 13515585 Details (OTN registration required):
Bug 13515585: ADD SUPPORT FOR THE UTF-8 BOM IN SQLPLUS Bug Status: Internal (Oracle) Review Created: 19-Dec-2011 Updated: 29-Sep-2015
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