I use dtSearch for the text searching, which works pretty well. I don't have to use it constantly but it works well when I need it, e.g. finding something from a website I viewed a few months ago, when I no longer remember which site it was, or determining whether I've ever come across a certain's person's name before, finding one of my passwords after I've forgotten where I saved it, and so on. Also, sometimes I haven't been sure about which keywords to search for, but I was able to determine that something must have happened on a particular day, and then I've been able to use the screenshots directly to search for it, scrolling through them like through a movie.

I don't use a terminal. Currently I've been using two personal computers and have kept the history from both.