(I'd advise to add script to a folder specified in PATH to be able to it invoke easily)
(you can hardcode a directory path in the second "" arg of the "dir_to_search" variable if you don't want to specify the "-d" flag every time )
$ findw -d <dir_to_search> -w <word_to_search_for>
or
$ findw -d <dir_to_search> -w "<phrase_to_search_for>"
if you decide to hardcode the dir in "dir_to_search"
$ findw -w <word_to_search_for>
or
$ findw -w "<phrase_to_search_for>"