grep returns

notification_interval 60
notification_interval 60
notification_interval 60
notification_interval 30
notification_interval 120
notification_interval 120

How would I remove the duplicate results ?

notification_interval 60
notification_interval 30
notification_interval 120

I tried using a combination of options with uniq but it still returns duplicates
grep notification_interval /usr/local/centreon/filesGeneration/nagiosCFG/1/serviceTemplates.cfg | uniq -d

notification_interval 60
notification_interval 60
notification_interval 120
notification_interval 60
notification_interval 180
notification_interval 180
notification_interval 90
notification_interval 30
notification_interval 60
notification_interval 30

Pipe through sort before piping in to uniq

1 members found this post helpful.

That makes sense. Thks

awk can remove duplicates without sorting
In this case you can even minimize resources by utilizing awk's word splitting

1 members found this post helpful.

yes, awk is a good solution (even grep is not required), but if you want to use sort, use sort -u and do not need to use uniq.