efreetd: 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/bin/efreetd - from package: libefreet-bin

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

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