so the command instructs evince to open on the specified page and highlight/move to the first occurrence of the word 

from http://manpages.ubuntu.com/manpages/wily/man1/evince.1.html

--page-index=NUMBER
              Open the document on the page  with  the  specified  page  index
              (this is the exact page number, not a page label).
--find=string
              You  can  pass  a word or phrase here. If it exists, evince will
              display the document and the first match.

the actual command "evince --page-index=%p --find=%s %f" is copied from recoll (http://www.lesbonscomptes.com/recoll/)
in "user preferences"-> "choose editor applications" i can use okular here, but cannot get the same functionality which is very important (i have had to install evince for this single use case!)

since you have documentation and application (evince) to benchmark, I assume this is clear?

Nicholas

On 17 September 2016 at 14:01, Ahmed Hussein via KDE Bugzilla <bugzilla_noreply@kde.org> wrote:
https://bugs.kde.org/show_bug.cgi?id=362038

Ahmed Hussein <thelastrealdevil@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |thelastrealdevil@gmail.com

--- Comment #1 from Ahmed Hussein <thelastrealdevil@gmail.com> ---
This is my first Bug. I want more info for this bug.
1. I implement find Arg and read it "--find <string>". What do you mean with
--page-index?
2. I don't understand what should i do with page Arg. Should I highlight search
only or force to first selected word.

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