UPDATE: added a fix to prevent TextEdit from issuing warnings
Here is a Tk script that almost does what you want. See ztksearch. Just start it in the directory you desire, and enter the search word. You can modify it to take the dir and word on the commandline, and you could add a save function
by using Tk::TextEdit instead of the Text widget.
use Tk::TextEdit;
....
$text = $f2->Scrolled('TextEdit',-scrollbars=>'se',....);
$text->SetGUICallbacks([sub {}]); #prevents warnings
.........
that will add a save file menu. You could get fancy too, and bind the tab button to jump from highlighted word to the next.
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