Add custom notes to output string

[sergex]

Can i add some notes to  exiftool output. Something like exiftool -j -temp_notes="Temp notes visible only in output" my_image.jpg. And output will contain
"TempNotes": "Temp notes visible only in output".
I want to use this for add unique ID to each file in batch mode instead windows unicode filenames issue .
Thanks.

[Phil Harvey]

Yes.  The -echo command will do this.  There is no equals sign though.

-echo "this text goes directly to the output"

- Phil

[sergex]

Thank you, Phil