When 'help' starts it loads a set of … These are files with names like /help/edit/stf (the … that lists the names of … commands … [p. 272] To read my mail, I first execute … [/help/mail/headers] … 'headers' in the ['mail'] window … [Example of debugging] … [p. 276] I could now answer Sean's mail to … is fixed. … Through this entire demo I haven't yet touched …
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