cpufreqd: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/sbin/cpufreqd - from package: cpufreqd

You may install the required package with command apt-get install {package}

Error in other languages:
cpufreqd: bevel nie gevind nie
cpufreqd: comandă negăsită
cpufreqd: comando não encontrado
cpufreqd: commande introuvable
cpufreqd: command not found
cpufreqd: käsku ei ole
cpufreqd: không tìm thấy lệnh
cpufreqd: komanda nerasta
cpufreqd: Kommando nicht gefunden.
cpufreqd: kommandot finns inte
cpufreqd: komut yok
cpufreqd: nie znaleziono polecenia
cpufreqd: níor aimsíodh an t-ordú
cpufreqd: no se encontró la orden
cpufreqd: no s'ha trobat l'ordre
cpufreqd: opdracht niet gevonden
cpufreqd: parancs nem található
cpufreqd: perintah tidak ditemukan
cpufreqd: príkaz nenájdený
cpufreqd: příkaz nenalezen
cpufreqd: команда не найдена
cpufreqd: командата не е открита
cpufreqd: 命令找不到
cpufreqd: コマンドが見つかりません