"dmenu is a dynamic menu for X, which reads a list of newline-separated items from stdin. When the user selects an item and presses Return, their choice is printed to stdout and dmenu terminates. Entering text will narrow the items to those matching the tokens in the input.
dmenu_run is a script used by dwm(1) which lists programs in the user's $PATH and runs the result in their $SHELL."
In practice you press Super + D, type a few letters to match the name of your program (such as "fox" for "firefox"), and press enter. It's so fast that any delay is near imperceptible even on older hardware. It also accepts command line arguments if you don't care to read the stdout from the process. This is a stupidly simple program that works with no configuration unless you want to change the font size.
My only gripe about it was that it would’ve been useful to be able to write math expressions in it like you can in Spotlight... so I made a wrapper script which adds that :) https://github.com/mortie/mmenu
https://github.com/DaveDavenport/rofi
It has default submodules to replace dmenu_run, a similar mode that lists the XDG applications (akin to the Start Menu you get on Mint, Fedora or other full-fat DE), SSH that parses `~/.ssh/config`, a dmenu-compatible mode for scripts and a Python API to implement custom modes.
Linux is vastly superior in stability, package management and just basic productivity.
There are of course still trade-offs such as drivers which, although so much better than what they used to be decades ago, are still not quite on par with the ones released for Windows in most instances. That being said, if you plan ahead a bit with your hardware purchases you'll have a great experience under Linux.
Now I use dmenu in i3wm and I couldn't be happier. All I need is something that searches my path for applications... and that's what it does.
