ctermd: 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/ctermd - from package: dnet-progs

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

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