uni is a command to make unique text like uniq command.
The difference with uni is that it does not require sorting of the input data.
uni receives text from stdin and unique it.
% cat text
a
c
b
c
% cat text | uni
a
c
b
Clone this repository to your computer and make a binary for your OS.
awk can do the same. 😉
cat text | '!a[$0]++{print}'