Prev: touch


Note! This site is about Perl 6.
If you are looking for a solution for the current production version of Perl 5, please check out the Perl 5 tutorial.

The UNIX uniq command drops the duplicate values from it input and prints out the result. Usually it is used in a pipe so it receives file rows and prints them on the screen (or passes them to the next command in the pipe chain).

In Perl 6 we have a uniq function that receives a list of values and returns the same list after dropping any duplicate value.

"input.txt"{ "$_\n" }.say

and this will work once slurp is fixed:


will print out the uniq rows in the input.txt file to the screen

The Perl 6 Tricks and Treats newsletter has been around for a while. If you are interested to get special notification when there is new content on this site, it is the best way to keep track:
Full name:
This is a newsletter temporarily running on my personal site ( using Mailman, till I implement an alternative system in Perl 6.
Gabor Szabo
Written by Gabor Szabo

Published on 2012-01-01

Prev: touch


In the comments, please wrap your code snippets within <pre> </pre> tags and use spaces for indentation.
comments powered by Disqus
Suggest a change
Elapsed time: 3.9497828

Perl 6 Tricks and Treats newsletter

Register to the free newsletter now, and get updates and news.