cfrun: 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/lib/debug/usr/sbin/cfrun - from package: cfengine2-dbg
/usr/sbin/cfrun - from package: cfengine2

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

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