Thanks very much again. I really appreciate the help.

I tried typing the green line, but without the " > " symbol, then tried 
it with the " > ". I tried typing the line

$ ls

 and got an error message and tried it with a one instead of a letter l, 
and tried all the other lines. I tried it on two other computers, in all 
cases all I got was error messages. What am I doing wrong? Tyvm in 
advance, and apologies for being so obtuse.

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