dcpupower (211 bytes)
1 #!/bin/sh 2 LINES=10 3 freqs="$(cpupower frequency-info | grep 'available cpufreq' \ 4 | sed 's/.*://' \ 5 | sed 's/, \| /\n/g' \ 6 | sed 's/^ *//' \ 7 | uniq)" 8 freq=$(echo "$freqs" | dmenu -l "$LINES" -p "Freq: ")
git clone https://github.com/equwal/dmenu-scripts