Josef Lowder wrote:
> On a previous *nix system, I had a little shell script named 'unique' 
> (contents shown below the line) that would compile a list of all the 
> unique words in a named text file.  But when I tried to use it on my 
> current Linux system today, I discovered that I do not have 'deroff' 
> which is required for 'unique' to work. 

does your machine have the command 'uniq'

 > man uniq

NAME
        uniq - remove duplicate lines from a sorted file

SYNOPSIS
        uniq [OPTION]... [INPUT [OUTPUT]]

DESCRIPTION
        Discard  all but one of successive identical lines from INPUT (or
        standard input), writing to OUTPUT (or standard output).
--snip--
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