Agilent Technologies Infiniium 8000A Programmer's Reference Manual page 676

Self Test Commands
The SELFtest subsystem commands set up the self test dialog and run
the oscilloscope's self tests.
Enclose File Name in Quotation Marks
When specifying a file name, you must enclose it in quotation marks.
These SELFtest commands and queries are implemented in the
Infiniium Oscilloscopes:
• CANCel
• SCOPETEST
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