A small file browser written with Rofi and GNU ls that I wrote so that I could throw away my file manager (which I still can't do because I can't figure out a way to replace their drag-and-drop functionality). Specifically written for catering my only need for file managers, that is, browsing the file system for PDFs and opening them up in Firefox.
curl https://raw.githubusercontent.com/susmit31/bash-scripts/master/rifle/rifle > rifle && sudo cp rifle /usr/local/bin/rifle && sudo chmod +x /usr/local/bin/rifle
rifle <DIRECTORY>
will open up a Rofi window with all the directories and files within <DIRECTORY>.
Scroll through them with the arrow keys, navigate to a directory or select a file
by pressing enter.