Scripting help

[Scott E.Graves <scottg@lintuit.com>]

If I had a list containing redundant entries, what command could I use 
suppress the duplications. Here's an example list:

man
man
ls
df
find
find
find

This would be obtaining using `sa -u | grep scottg | awk '{print $8}' ` to 
list all programs executed by user scottg. I need to condense the list to:

man
ls
df
find

Thanks,
Scott