inetd: command not found

Have You tried accessing the binary with the full path?

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/inetd - from package: openbsd-inetd

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