What I would like to be able to do is to have a list of words that are allowed to be autocompleted when typing the first word in the command line.
Say, I have
PATH=/dir, and the directory
/dir has two files in it —
calc. And I would have this list that I want, and it has one word in it —
calc. So, when I type
ca and press tab, the command expands to
calc, and no list of possible autocompletes is shown