dmenu/dmenu_run

#!/bin/sh
if [ "$EUID" -ne 0 ]
then
    dmenu_path | dmenu "$@" | ${SHELL:-"/bin/sh"} &
else
    dmenu_path | dmenu -nb '#1e1e1e' -sf '#1e1e1e' -sb '#DD0000' -nf '#DD0000' "$@" | ${SHELL:-"/bin/sh"} &
fi