[net.works] More on command completion

Larry@sri-unix (07/24/82)

Suppose I'm working with a command completion system and I don't know
for sure how many characters I have to type to uniquely identify a
command.  Next, suppose that the system if heavily loaded.  In that
case, I'll either end up typing too many characters and backing up
out of extra commands I didn't want, or else I'll type a character
and then sit and wait for the command completion to pop up.  I would
much prefer a system where I can easily understand the circumstances
in which the computer is going to do something - either because ALL
the commands are abbreviated to the same length, or because commands
don't complete until I type a space, or because they don't complete
until I type something special (escape).  Basically, I don't think
users should be required to memorize abbreviations, especially if
those abbreviations are subject to change.  Abbreviations should
be there to speed type-in for commands the user is familiar with.
Command completion should be there to reassure the user that the
abbreviation was correct.  Any comments?

Larry
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