$ curl cheat.sh/
# rofi
# An application launcher and window switcher.
# More information: <https://github.com/davatorium/rofi>.

# Show the list of apps:
rofi -show drun

# Show the list of all commands:
rofi -show run

# Switch between windows:
rofi -show window

# Pipe a list of items to `stdin` and print the selected item to `stdout`:
printf "Choice1\nChoice2\nChoice3" | rofi -dmenu

$
Follow @igor_chubin cheat.sh tldr